$116+ Cheap flights from Dulles Intl (IAD) to Montana
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Jul 23 — Jul 301
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Dulles Intl to Montana with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Dulles Intl to Montana
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to MontanaExplore the most affordable flight options available from Dulles Intl to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
Explore the most affordable flight options available from Dulles Intl to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:50 am
IAD
- FCA
1 stop25h 50m
Multiple Airlines
Fri 8/2110:54 am
FCA
- IAD
1 stop19h 10m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$300
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:10 am
IAD
- FCA
1 stop7h 18m
United Airlines
Wed 10/712:26 pm
FCA
- IAD
1 stop8h 26m
United Airlines
Deal found 6/18![United Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:20 am
IAD
- FCA
1 stop26h 44m
Multiple Airlines
Mon 8/243:39 pm
FCA
- IAD
1 stop14h 25m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:50 am
IAD
- FCA
1 stop25h 50m
Multiple Airlines
Mon 8/243:39 pm
FCA
- IAD
1 stop14h 25m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:35 am
IAD
- FCA
1 stop8h 53m
United Airlines
Wed 10/1412:26 pm
FCA
- IAD
1 stop8h 26m
United Airlines
Deal found 6/18![United Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/93:27 pm
IAD
- BZN
1 stop26h 51m
Allegiant Air
Sat 8/1510:31 am
BZN
- IAD
1 stop26h 06m
Allegiant Air
Deal found 6/20![Allegiant Air logo]()
$335
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:15 am
IAD
- BZN
Nonstop4h 27m
United Airlines
Sat 9/196:30 am
BZN
- IAD
1 stop9h 20m
United Airlines
Deal found 6/21![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:00 am
IAD
- BZN
1 stop9h 13m
United Airlines
Mon 8/314:32 pm
BZN
- IAD
1 stop6h 00m
United Airlines
Deal found 6/22![United Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:56 pm
IAD
- BZN
1 stop27h 22m
Multiple Airlines
Sun 8/164:51 pm
BZN
- IAD
1 stop13h 29m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:49 pm
IAD
- BZN
1 stop6h 27m
Delta
Wed 9/23:55 pm
BZN
- IAD
1 stop5h 26m
Delta
Deal found 6/22![Delta logo]()
$349
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:47 pm
IAD
- BIL
1 stop6h 24m
Delta
Wed 9/2312:57 pm
BIL
- IAD
1 stop8h 25m
Delta
Deal found 6/17![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am
IAD
- HLN
1 stop11h 11m
Alaska Airlines
Sat 10/314:48 pm
HLN
- IAD
1 stop10h 52m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$349
Best flights from Dulles Intl to MontanaDiscover carefully curated flight deals from Dulles Intl to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
Discover carefully curated flight deals from Dulles Intl to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:20 am
IAD
- BZN
1 stop7h 13m
United Airlines
Fri 11/1312:30 pm
BZN
- IAD
1 stop6h 35m
United Airlines
Deal found 6/18![United Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am
IAD
- BZN
1 stop7h 05m
Delta
Tue 9/151:37 pm
BZN
- IAD
1 stop7h 46m
Delta
Deal found 6/18![Delta logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am
IAD
- HLN
1 stop11h 11m
Alaska Airlines
Sat 10/314:48 pm
HLN
- IAD
1 stop10h 52m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:53 pm
IAD
- BIL
1 stop9h 54m
American Airlines
Tue 8/2512:22 pm
BIL
- IAD
2 stops8h 33m
American Airlines
Deal found 6/20![American Airlines logo]()
$525
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
IAD
- HLN
1 stop7h 17m
Delta
Wed 9/2312:57 pm
HLN
- IAD
1 stop8h 25m
Delta
Deal found 6/18![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:15 am
IAD
- FCA
1 stop7h 12m
United Airlines
Thu 10/112:26 pm
FCA
- IAD
1 stop8h 26m
United Airlines
Deal found 6/22![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:49 pm
IAD
- MSO
1 stop6h 58m
Delta
Sat 9/56:00 am
MSO
- IAD
1 stop5h 35m
Delta
Deal found 6/19![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:43 pm
IAD
- FCA
1 stop8h 38m
United Airlines
Fri 9/113:58 pm
FCA
- IAD
1 stop6h 46m
United Airlines
Deal found 6/23![United Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am
IAD
- GTF
1 stop11h 39m
Alaska Airlines
Sat 10/35:15 pm
GTF
- IAD
1 stop10h 25m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$424
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:13 pm
IAD
- BIL
2 stops9h 58m
Delta
Wed 9/2312:57 pm
BIL
- IAD
1 stop8h 25m
Delta
Deal found 6/17![Delta logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:35 am
IAD
- GTF
1 stop9h 00m
Alaska Airlines
Tue 10/205:15 pm
GTF
- IAD
1 stop10h 25m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:35 am
IAD
- GTF
1 stop9h 06m
United Airlines
Sat 10/102:37 pm
GTF
- IAD
1 stop6h 48m
United Airlines
Deal found 6/18![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am
IAD
- GTF
2 stops13h 43m
Delta
Tue 10/201:10 pm
GTF
- IAD
1 stop8h 36m
Delta
Deal found 6/19![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:30 am
IAD
- BZN
1 stop8h 54m
United Airlines
Mon 9/214:32 pm
BZN
- IAD
1 stop6h 00m
United Airlines
Deal found 6/22![United Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:23 pm
IAD
- BIL
1 stop7h 49m
Delta
Wed 9/96:33 pm
BIL
- IAD
2 stops12h 37m
Delta
Deal found 6/21![Delta logo]()
$393
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:00 am
IAD
- MSO
1 stop10h 17m
Alaska Airlines
Mon 9/214:16 pm
MSO
- IAD
1 stop11h 24m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:26 pm
IAD
- COD
1 stop7h 19m
United Airlines
Tue 9/15:53 pm
COD
- IAD
1 stop9h 32m
United Airlines
Deal found 6/22![United Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:25 am
IAD
- BZN
2 stops12h 30m
Delta
Wed 9/231:08 pm
BZN
- IAD
1 stop8h 25m
Delta
Deal found 6/22![Delta logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:00 am
IAD
- GTF
1 stop11h 39m
Alaska Airlines
Mon 9/145:19 pm
GTF
- IAD
1 stop28h 40m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$529
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:35 am
IAD
- COD
1 stop9h 17m
United Airlines
Mon 8/175:53 pm
COD
- IAD
1 stop9h 32m
United Airlines
Deal found 6/21![United Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:20 am
IAD
- COD
1 stop11h 32m
United Airlines
Wed 8/195:00 am
COD
- IAD
1 stop10h 50m
United Airlines
Deal found 6/21![United Airlines logo]()
$438
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:57 pm
IAD
- HLN
1 stop24h 44m
Alaska Airlines
Sun 9/205:18 pm
HLN
- IAD
1 stop10h 22m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$534
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am
IAD
- BTM
2 stops13h 05m
Delta
Tue 10/206:10 pm
BTM
- IAD
2 stops13h 01m
Delta
Deal found 6/19![Delta logo]()
$454
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/274:15 pm
IAD
- BTM
1 stop8h 16m
United Airlines
Sat 10/3110:00 am
BTM
- IAD
1 stop9h 20m
United Airlines
Deal found 6/19![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:00 am
IAD
- FCA
1 stop6h 55m
Delta
Thu 9/2412:45 pm
FCA
- IAD
1 stop8h 37m
Delta
Deal found 6/19![Delta logo]()
$475
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:03 am
IAD
- MSO
1 stop12h 06m
Alaska Airlines
Wed 8/194:12 pm
MSO
- IAD
2 stops24h 02m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$575
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:13 pm
IAD
- BZN
1 stop7h 29m
United Airlines
Wed 8/264:30 pm
BZN
- IAD
1 stop6h 14m
United Airlines
Deal found 6/20![United Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:00 am
IAD
- BZN
2 stops15h 45m
Alaska Airlines
Sun 9/202:21 pm
BZN
- IAD
1 stop24h 33m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$581
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:26 pm
IAD
- FCA
2 stops12h 28m
Delta
Thu 9/2412:40 pm
FCA
- IAD
1 stop8h 53m
Delta
Deal found 6/20![Delta logo]()
$484
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/192:43 pm
IAD
- BIL
1 stop8h 17m
United Airlines
Sat 8/225:00 am
BIL
- IAD
1 stop6h 30m
United Airlines
Deal found 6/19![United Airlines logo]()
$449
Last-minute flights from Dulles Intl to MontanaDiscover last-minute flight deals from Dulles Intl to Montana. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Montana. Data last updated June 23, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:33 am
IAD
- BZN
1 stop7h 29m
United Airlines
Fri 7/104:24 pm
BZN
- IAD
1 stop6h 21m
United Airlines
Deal found 6/18![United Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:30 am
IAD
- BIL
1 stop8h 52m
United Airlines
Sat 7/115:00 am
BIL
- IAD
1 stop6h 26m
United Airlines
Deal found 6/20![United Airlines logo]()
$447
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:50 am
IAD
- FCA
1 stop25h 50m
Multiple Airlines
Fri 7/1710:50 am
FCA
- IAD
1 stop19h 30m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:50 am
IAD
- FCA
1 stop25h 50m
Multiple Airlines
Sat 7/1811:00 am
FCA
- IAD
2 stops50h 40m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$421
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:15 am
IAD
- WYS
1 stop7h 11m
Delta
Wed 7/221:10 pm
WYS
- IAD
2 stops9h 31m
Delta
Deal found 6/18![Delta logo]()
$443
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/182:53 pm
IAD
- BZN
1 stop7h 50m
United Airlines
Wed 7/224:24 pm
BZN
- IAD
1 stop6h 21m
United Airlines
Deal found 6/20![United Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:10 am
IAD
- BZN
1 stop7h 34m
United Airlines
Fri 8/74:29 pm
BZN
- IAD
1 stop6h 16m
United Airlines
Deal found 6/21![United Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/263:16 pm
IAD
- BZN
1 stop27h 03m
Allegiant Air
Fri 7/315:09 pm
BZN
- IAD
1 stop18h 58m
Allegiant Air
Deal found 6/21![Allegiant Air logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/263:16 pm
IAD
- BZN
1 stop27h 03m
Multiple Airlines
Thu 7/304:48 pm
BZN
- IAD
1 stop13h 32m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$435
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:03 am
IAD
- BZN
2 stops9h 31m
American Airlines
Tue 8/46:45 am
BZN
- IAD
1 stop9h 52m
American Airlines
Deal found 6/21![American Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:10 am
IAD
- BZN
1 stop7h 34m
United Airlines
Tue 8/48:00 am
BZN
- IAD
1 stop6h 30m
United Airlines
Deal found 6/19![United Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/303:16 pm
IAD
- BZN
1 stop27h 03m
Multiple Airlines
Mon 8/33:43 pm
BZN
- IAD
2 stops19h 04m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$444
One-way flights from Dulles Intl to MontanaSearch for one-way flight options from Dulles Intl to Montana. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
Search for one-way flight options from Dulles Intl to Montana. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:59 am
IAD
- FCA
1 stop27h 05m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:59 am
IAD
- BIL
1 stop9h 56m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:50 am
IAD
- FCA
1 stop25h 50m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$128
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am
IAD
- BZN
1 stop9h 46m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$175
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/232:43 pm
IAD
- HLN
1 stop8h 47m
United Airlines
Deal found 6/20![United Airlines logo]()
$175
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:09 am
IAD
- MSO
1 stop8h 26m
American Airlines
Deal found 6/21![American Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/159:50 am
IAD
- BZN
1 stop32h 08m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:47 pm
IAD
- BZN
1 stop26h 58m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$180
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:28 am
IAD
- MSO
2 stops11h 26m
Delta
Deal found 6/21![Delta logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/263:16 pm
IAD
- BZN
1 stop27h 03m
Allegiant Air
Deal found 6/21![Allegiant Air logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:39 pm
IAD
- FCA
3 stops39h 25m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
IAD
- MSO
3 stops39h 59m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$187
Find flight deals from Dulles Intl to Montana
Keep the following information in mind while searching for Dulles Intl to Montana flight deals. Data was last updated June 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $300 (Kiwi.com) |
One-way from | $116 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $523 |
Good round-trip deal | $613 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Montana that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 23, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Montana that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Fri 10/30
6:20 am-11:33 am
1 stop7h 13m
Bozeman Gallatin Field
Fri 11/13
12:30 pm-9:05 pm
1 stop6h 35m
$344
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Mon 8/31
7:00 am-12:05 pm
1 stop7h 05m
Bozeman Gallatin Field
Tue 9/15
1:37 pm-11:23 pm
1 stop7h 46m
$349
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Tue 10/27
7:00 am-4:11 pm
1 stop11h 11m
Helena
Sat 10/31
4:48 pm-5:40 am
1 stop10h 52m
$349
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Wed 9/9
7:00 am-12:17 pm
1 stop7h 17m
Helena
Wed 9/23
12:57 pm-11:22 pm
1 stop8h 25m
$349
Quickest round-trip
Washington, D.C.Missoula
IAD - MSO
IADMSO
Washington, D.C. Dulles Intl
Tue 8/25
6:49 pm-11:47 pm
1 stop6h 58m
Missoula Johnson-Bell Field
Sat 9/5
6:00 am-1:35 pm
1 stop5h 35m
$349
Washington, D.C.Billings
IAD - BIL
IADBIL
Washington, D.C. Dulles Intl
Mon 9/14
3:13 pm-11:11 pm
2 stops9h 58m
Billings Logan Intl
Wed 9/23
12:57 pm-11:22 pm
1 stop8h 25m
$354
Washington, D.C.Great Falls
IAD - GTF
IADGTF
Washington, D.C. Dulles Intl
Thu 10/15
6:00 am-5:43 pm
2 stops13h 43m
Great Falls
Tue 10/20
1:10 pm-11:46 pm
1 stop8h 36m
$369
Washington, D.C.Kalispell
IAD - FCA
IADFCA
Washington, D.C. Dulles Intl
Tue 9/1
6:15 am-11:27 am
1 stop7h 12m
Kalispell Glacier Park
Thu 10/1
12:26 pm-10:52 pm
1 stop8h 26m
$379
Washington, D.C.Kalispell
IAD - FCA
IADFCA
Washington, D.C. Dulles Intl
Tue 9/1
2:43 pm-9:21 pm
1 stop8h 38m
Kalispell Glacier Park
Fri 9/11
3:58 pm-12:44 am
1 stop6h 46m
$379
Washington, D.C.Billings
IAD - BIL
IADBIL
Washington, D.C. Dulles Intl
Sat 8/29
2:23 pm-8:12 pm
1 stop7h 49m
Billings Logan Intl
Wed 9/9
6:33 pm-9:10 am
2 stops12h 37m
$393
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Dulles Intl to Montana
Have a flexible travel schedule? Discover the best time to fly to Montana from Dulles Intl with our price prediction graph.
IAD-FCA
IAD-BZN
IAD-WYS
IAD-BIL
IAD-HLN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Montana
IAD-USMT
IAD-FCA
IAD-BZN
IAD-WYS
IAD-BIL
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Montana?
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montana (average of $145). Flying from Washington, D.C. Dulles Intl Airport to Montana in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IAD to MT?
Find hourly flight availability from Dulles Intl to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 23, 2026.
When flying from Washington, D.C. Dulles Intl Airport to Montana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Montana?
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Montana?
The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Montana may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Montana
Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated June 23, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Washington, D.C. Dulles Intl Airport to Montana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Comfort
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Montana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Dulles Intl to Montana
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Montana by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Dulles Intl to Montana by cabin class
Find flights from Dulles Intl to Montana, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Dulles Intl and Montana flights
Browse other Dulles Intl and Montana flight options. Last updated on June 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Dulles Intl to Montana flights
Consider these flights traveling from Dulles Intl to Montana.
Top 4 airlines flying from Dulles Intl to Montana
Discover the top 4 airlines that operate flights from Dulles Intl to Montana. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$241 | Average$374 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$248 | Average$493 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$276 | Average$537 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$289 | Average$411 | FlexibilityNo cancel fee | On-timeN/A |