$141+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Aug 2 — Aug 91
Round-trip
1 adult, Economy
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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 July 3, 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 July 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 8/77:18 pm
IAD
- MSO
2 stops40h 16m
Multiple Airlines
Thu 8/1310:24 am
MSO
- IAD
1 stop19h 56m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/238:59 am
IAD
- FCA
1 stop31h 50m
Multiple Airlines
Fri 8/2810:54 am
FCA
- IAD
1 stop19h 10m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 6/28. 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
- BZN
1 stop9h 07m
Multiple Airlines
Sun 8/309:06 pm
BZN
- IAD
1 stop8h 58m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 7/269:50 am
IAD
- GTF
1 stop25h 39m
Multiple Airlines
Fri 8/1410:19 am
GTF
- IAD
1 stop20h 01m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/278:59 am
IAD
- MSO
1 stop14h 03m
Multiple Airlines
Sun 8/309:52 pm
MSO
- IAD
2 stops34h 15m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 6/28. 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
- MSO
1 stop14h 03m
Multiple Airlines
Sun 8/239:52 pm
MSO
- IAD
2 stops34h 15m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$334
This Delta deal was found by Cheapflights users on 7/3. 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 11/17:00 am
IAD
- GTF
1 stop7h 33m
Delta
Sat 11/141:10 pm
GTF
- IAD
1 stop8h 36m
Delta
Deal found 7/3![Delta logo]()
$338
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/197:00 am
IAD
- BZN
1 stop9h 13m
United Airlines
Fri 8/284:32 pm
BZN
- IAD
1 stop6h 00m
United Airlines
Deal found 6/28![United Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 6/28. 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
- BZN
1 stop9h 07m
Multiple Airlines
Thu 8/274:56 pm
BZN
- IAD
2 stops22h 18m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Sat 8/19:30 am
IAD
- MSO
1 stop26h 04m
Multiple Airlines
Thu 8/1310:24 am
MSO
- IAD
1 stop19h 56m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 6/29. 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 8/186:49 pm
IAD
- BZN
1 stop6h 27m
Delta
Tue 8/251:00 pm
BZN
- IAD
1 stop8h 39m
Delta
Deal found 6/29![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/262:43 pm
IAD
- BIL
1 stop8h 17m
United Airlines
Tue 9/12:29 pm
BIL
- IAD
1 stop6h 50m
United Airlines
Deal found 6/30![United 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 July 3, 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 July 3, 2026.
This United Airlines deal was found by Cheapflights users on 7/1. 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
- GTF
1 stop8h 29m
United Airlines
Tue 8/252:25 pm
GTF
- IAD
1 stop6h 54m
United Airlines
Deal found 7/1![United Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 7/3. 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 11/17:00 am
IAD
- GTF
1 stop7h 33m
Delta
Sat 11/145:30 am
GTF
- IAD
2 stops11h 40m
Delta
Deal found 7/3![Delta logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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 9/57:35 pm
IAD
- BZN
1 stop27h 10m
Alaska Airlines
Wed 9/93:42 pm
BZN
- IAD
2 stops11h 58m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$415
This American Airlines deal was found by Cheapflights users on 7/3. 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 7/3![American Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/196:15 am
IAD
- BIL
1 stop6h 32m
United Airlines
Sat 9/265:00 am
BIL
- IAD
1 stop6h 30m
United Airlines
Deal found 6/29![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 7/3. 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 9/127:00 am
IAD
- GTF
1 stop7h 35m
Delta
Mon 9/216:21 pm
GTF
- IAD
2 stops15h 24m
Delta
Deal found 7/3![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/262:43 pm
IAD
- BIL
1 stop8h 17m
United Airlines
Tue 9/12:29 pm
BIL
- IAD
1 stop6h 50m
United Airlines
Deal found 6/30![United Airlines logo]()
$349
This United deal was found by Cheapflights users on 7/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:34 pm
IAD
- SDY
2 stops23h 14m
Multiple Airlines
Sun 8/233:38 pm
SDY
- IAD
2 stops17h 46m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$774
This Delta deal was found by Cheapflights users on 7/1. 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 8/222:23 pm
IAD
- FCA
1 stop7h 52m
Delta
Thu 8/2712:02 pm
FCA
- IAD
1 stop9h 37m
Delta
Deal found 7/1![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 6/29. 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 8/295:47 pm
IAD
- BIL
1 stop19h 44m
Alaska Airlines
Wed 9/97:29 pm
BIL
- IAD
1 stop8h 11m
Alaska Airlines
Deal found 6/29![Alaska Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 6/30. 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 8/295:16 pm
IAD
- MSO
2 stops8h 31m
Delta
Sat 9/56:00 am
MSO
- IAD
1 stop5h 35m
Delta
Deal found 6/30![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 6/29. 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 7/273:39 pm
IAD
- BZN
1 stop9h 04m
United Airlines
Mon 8/34:29 pm
BZN
- IAD
1 stop6h 16m
United Airlines
Deal found 6/29![United Airlines logo]()
$420
This Delta deal was found by Cheapflights users on 6/29. 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 9/192:22 pm
IAD
- BZN
1 stop7h 38m
Delta
Fri 9/251:08 pm
BZN
- IAD
1 stop8h 25m
Delta
Deal found 6/29![Delta logo]()
$404
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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.
Fri 9/47:35 pm
IAD
- BIL
2 stops25h 14m
Alaska Airlines
Fri 9/117:29 pm
BIL
- IAD
1 stop8h 11m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$500
This United Airlines deal was found by Cheapflights users on 6/29. 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 11/146:30 am
IAD
- GTF
1 stop9h 07m
United Airlines
Tue 11/172:39 pm
GTF
- IAD
1 stop6h 26m
United Airlines
Deal found 6/29![United Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 6/30. 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 11/86:00 am
IAD
- FCA
2 stops10h 41m
Delta
Sun 11/151:29 pm
FCA
- IAD
1 stop8h 04m
Delta
Deal found 6/30![Delta logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 8/237:35 pm
IAD
- BZN
1 stop27h 10m
Alaska Airlines
Fri 8/2810:27 am
BZN
- IAD
1 stop17h 13m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 6/29. 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 6/29![United Airlines logo]()
$438
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 10/127:24 pm
IAD
- BZN
2 stops30h 35m
Alaska Airlines
Mon 10/197:25 pm
BZN
- IAD
1 stop8h 15m
Alaska Airlines
Deal found 6/30![Alaska Airlines logo]()
$510
This Delta deal was found by Cheapflights users on 7/3. 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 7/3![Delta logo]()
$423
This United Airlines deal was found by Cheapflights users on 7/2. 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 11/145:26 pm
IAD
- BTM
1 stop7h 05m
United Airlines
Wed 11/1810:00 am
BTM
- IAD
1 stop7h 18m
United Airlines
Deal found 7/2![United Airlines logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 10/17:00 am
IAD
- MSO
1 stop10h 17m
Alaska Airlines
Mon 10/57:00 am
MSO
- IAD
1 stop20h 40m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$511
This Delta deal was found by Cheapflights users on 6/28. 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 8/257:00 am
IAD
- HLN
1 stop7h 15m
Delta
Mon 8/3112:55 pm
HLN
- IAD
1 stop8h 44m
Delta
Deal found 6/28![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 6/30. 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 11/145:26 pm
IAD
- BTM
1 stop7h 05m
United Airlines
Tue 11/1710:00 am
BTM
- IAD
1 stop7h 18m
United Airlines
Deal found 6/30![United Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 6/29. 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 8/185:25 pm
IAD
- MSO
2 stops8h 22m
Delta
Wed 8/266:27 pm
MSO
- IAD
2 stops12h 53m
Delta
Deal found 6/29![Delta logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 7/1. 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 stop18h 01m
Alaska Airlines
Mon 9/214:16 pm
MSO
- IAD
1 stop11h 24m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$520
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/52:43 pm
IAD
- BZN
1 stop8h 36m
United Airlines
Thu 9/102:30 pm
BZN
- IAD
1 stop8h 02m
United Airlines
Deal found 6/29![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 6/30. 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 9/147:00 am
IAD
- HLN
1 stop7h 17m
Delta
Wed 9/307:15 am
HLN
- IAD
2 stops13h 41m
Delta
Deal found 6/30![Delta logo]()
$430
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 10/245:33 pm
IAD
- FCA
2 stops21h 50m
Alaska Airlines
Wed 10/287:45 pm
FCA
- IAD
1 stop7h 55m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$543
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/264:15 pm
IAD
- BIL
1 stop6h 45m
United Airlines
Mon 8/312:29 pm
BIL
- IAD
1 stop8h 03m
United Airlines
Deal found 6/30![United Airlines logo]()
$449
Last-minute flights from Dulles Intl to MontanaDiscover last-minute flight deals from Dulles Intl to Montana. Data last updated July 3, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Montana. Data last updated July 3, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 7/269:50 am
IAD
- GTF
1 stop25h 39m
Multiple Airlines
Fri 8/1410:19 am
GTF
- IAD
1 stop20h 01m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Sat 8/19:30 am
IAD
- MSO
1 stop26h 04m
Multiple Airlines
Thu 8/1310:24 am
MSO
- IAD
1 stop19h 56m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 8/77:18 pm
IAD
- MSO
2 stops40h 16m
Multiple Airlines
Thu 8/1310:24 am
MSO
- IAD
1 stop19h 56m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 6/29. 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 8/186:49 pm
IAD
- BZN
1 stop6h 27m
Delta
Tue 8/251:00 pm
BZN
- IAD
1 stop8h 39m
Delta
Deal found 6/29![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 7/1. 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
- GTF
1 stop8h 29m
United Airlines
Tue 8/252:25 pm
GTF
- IAD
1 stop6h 54m
United Airlines
Deal found 7/1![United Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/197:00 am
IAD
- BZN
1 stop9h 13m
United Airlines
Fri 8/284:32 pm
BZN
- IAD
1 stop6h 00m
United Airlines
Deal found 6/28![United Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 6/28. 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
- BZN
1 stop9h 07m
Multiple Airlines
Sun 8/309:06 pm
BZN
- IAD
1 stop8h 58m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/28. 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
- MSO
1 stop14h 03m
Multiple Airlines
Sun 8/239:52 pm
MSO
- IAD
2 stops34h 15m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 6/28. 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
- BZN
1 stop9h 07m
Multiple Airlines
Thu 8/274:56 pm
BZN
- IAD
2 stops22h 18m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 8/238:59 am
IAD
- FCA
1 stop31h 50m
Multiple Airlines
Fri 8/2810:54 am
FCA
- IAD
1 stop19h 10m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/262:43 pm
IAD
- BIL
1 stop8h 17m
United Airlines
Tue 9/12:29 pm
BIL
- IAD
1 stop6h 50m
United Airlines
Deal found 6/30![United Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/278:59 am
IAD
- MSO
1 stop14h 03m
Multiple Airlines
Sun 8/309:52 pm
MSO
- IAD
2 stops34h 15m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$328
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 July 3, 2026.
Search for one-way flight options from Dulles Intl to Montana. Find affordable one-way fares based on user searches. Data last updated July 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/149:50 am
IAD
- MSO
2 stops55h 12m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 6/29. 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
Allegiant Air
Deal found 6/29![Allegiant Air logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 8/1412:00 pm
IAD
- BZN
3 stops23h 41m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$164
This Trip.com deal was found by Cheapflights users on 7/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:00 am
IAD
- BZN
1 stop9h 46m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$171
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/242:43 pm
IAD
- MSO
1 stop8h 48m
United Airlines
Deal found 6/30![United Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 9/1312:50 pm
IAD
- BZN
3 stops30h 34m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$178
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 8/157:57 am
IAD
- BZN
2 stops14h 40m
American Airlines
Deal found 7/2![American Airlines logo]()
$180
This Delta deal was found by Cheapflights users on 6/30. 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 8/115:25 pm
IAD
- MSO
2 stops8h 53m
Delta
Deal found 6/30![Delta logo]()
$180
This United Airlines deal was found by Cheapflights users on 7/1. 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
Deal found 7/1![United Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 8/63:27 pm
IAD
- BZN
1 stop26h 51m
Allegiant Air
Deal found 7/1![Allegiant Air logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 9/38:59 am
IAD
- BZN
1 stop10h 55m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$195
This American Airlines deal was found by Cheapflights users on 6/30. 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 9/16:10 am
IAD
- FCA
2 stops12h 00m
American Airlines
Deal found 6/30![American Airlines logo]()
$195
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 July 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $218 (Kiwi.com) |
One-way from | $141 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $557 |
Good round-trip deal | $654 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 July 3, 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.Great Falls
IAD - GTF
IADGTF
Washington, D.C. Dulles Intl
Wed 8/19
2:43 pm-9:12 pm
1 stop8h 29m
Great Falls
Tue 8/25
2:25 pm-11:19 pm
1 stop6h 54m
$338
Washington, D.C.Great Falls
IAD - GTF
IADGTF
Washington, D.C. Dulles Intl
Sun 11/1
7:00 am-12:33 pm
1 stop7h 33m
Great Falls
Sat 11/14
5:30 am-7:10 pm
2 stops11h 40m
$344
Quickest round-trip
Washington, D.C.Billings
IAD - BIL
IADBIL
Washington, D.C. Dulles Intl
Sat 9/19
6:15 am-10:47 am
1 stop6h 32m
Billings Logan Intl
Sat 9/26
5:00 am-1:30 pm
1 stop6h 30m
$349
Washington, D.C.Billings
IAD - BIL
IADBIL
Washington, D.C. Dulles Intl
Wed 8/26
2:43 pm-9:00 pm
1 stop8h 17m
Billings Logan Intl
Tue 9/1
2:29 pm-11:19 pm
1 stop6h 50m
$349
Washington, D.C.Great Falls
IAD - GTF
IADGTF
Washington, D.C. Dulles Intl
Sat 9/12
7:00 am-12:35 pm
1 stop7h 35m
Great Falls
Mon 9/21
6:21 pm-11:45 am
2 stops15h 24m
$369
Washington, D.C.Kalispell
IAD - FCA
IADFCA
Washington, D.C. Dulles Intl
Sat 8/22
2:23 pm-8:15 pm
1 stop7h 52m
Kalispell Glacier Park
Thu 8/27
12:02 pm-11:39 pm
1 stop9h 37m
$379
Washington, D.C.Missoula
IAD - MSO
IADMSO
Washington, D.C. Dulles Intl
Sat 8/29
5:16 pm-11:47 pm
2 stops8h 31m
Missoula Johnson-Bell Field
Sat 9/5
6:00 am-1:35 pm
1 stop5h 35m
$379
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Sat 9/19
2:22 pm-8:00 pm
1 stop7h 38m
Bozeman Gallatin Field
Fri 9/25
1:08 pm-11:33 pm
1 stop8h 25m
$404
Washington, D.C.Kalispell
IAD - FCA
IADFCA
Washington, D.C. Dulles Intl
Sun 11/8
6:00 am-2:41 pm
2 stops10h 41m
Kalispell Glacier Park
Sun 11/15
1:29 pm-11:33 pm
1 stop8h 04m
$412
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Sat 9/5
7:35 pm-8:45 pm
1 stop27h 10m
Bozeman Gallatin Field
Wed 9/9
3:42 pm-5:40 am
2 stops11h 58m
$415
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-MSO
IAD-FCA
IAD-BZN
IAD-GTF
IAD-BIL
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-MSO
IAD-FCA
IAD-BZN
IAD-GTF
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 July 3, 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 July 3, 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.
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Entertainment
7.5
Overall
7.9
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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.
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Dulles Intl and Montana flights
Browse other Dulles Intl and Montana flight options. Last updated on July 3, 2026.
Popular flight searches
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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 July 3, 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$280 | Average$532 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$289 | Average$411 | FlexibilityNo cancel fee | On-timeN/A |