$131+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
May 5 — May 121
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Montana with Cheapflights
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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 April 5, 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 April 5, 2026.
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:18 am
IAD
- FCA
1 stop10h 42m
American Airlines
Tue 6/91:25 pm
FCA
- IAD
2 stops8h 48m
American Airlines
Deal found 4/1![American Airlines logo]()
$242
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/285:20 pm
IAD
- BIL
1 stop6h 45m
United Airlines
Tue 5/52:30 pm
BIL
- IAD
1 stop7h 04m
United Airlines
Deal found 3/31![United Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 3/31. 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 4/2812:12 pm
IAD
- BIL
2 stops12h 42m
Delta
Tue 5/511:33 am
BIL
- IAD
2 stops9h 59m
Delta
Deal found 3/31![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Fri 5/292:35 pm
IAD
- HLN
1 stop8h 45m
United Airlines
Tue 6/22:20 pm
HLN
- IAD
1 stop7h 12m
United Airlines
Deal found 4/1![United Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 3/31. 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 5/276:58 pm
IAD
- MSO
1 stop6h 42m
Delta
Sat 5/303:30 pm
MSO
- IAD
1 stop6h 09m
Delta
Deal found 3/31![Delta logo]()
$273
This Delta deal was found by Cheapflights users on 3/31. 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 5/286:58 pm
IAD
- MSO
1 stop6h 42m
Delta
Sat 5/303:30 pm
MSO
- IAD
1 stop6h 09m
Delta
Deal found 3/31![Delta logo]()
$284
This Delta deal was found by Cheapflights users on 3/31. 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 9/236:40 pm
IAD
- FCA
1 stop7h 06m
Delta
Wed 9/306:59 am
FCA
- IAD
1 stop8h 59m
Delta
Deal found 3/31![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:18 am
IAD
- MSO
1 stop9h 10m
American Airlines
Sat 5/306:45 am
MSO
- IAD
1 stop9h 49m
American Airlines
Deal found 4/1![American Airlines logo]()
$321
This United Airlines deal was found by Cheapflights users on 4/2. 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 9/122:43 pm
IAD
- GTF
1 stop8h 45m
United Airlines
Sat 9/192:31 pm
GTF
- IAD
1 stop8h 09m
United Airlines
Deal found 4/2![United Airlines logo]()
$326
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:12 pm
IAD
- MSO
2 stops11h 26m
American Airlines
Tue 6/24:44 pm
MSO
- IAD
1 stop10h 04m
American Airlines
Deal found 4/1![American Airlines logo]()
$326
This United Airlines deal was found by Cheapflights users on 4/4. 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 8/228:15 am
IAD
- BZN
Nonstop4h 30m
United Airlines
Sat 8/2910:25 am
BZN
- IAD
Nonstop4h 05m
United Airlines
Deal found 4/4![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:18 am
IAD
- FCA
1 stop10h 42m
American Airlines
Wed 6/1012:25 pm
FCA
- IAD
1 stop8h 22m
American Airlines
Deal found 4/1![American Airlines logo]()
$329
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 April 5, 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 April 5, 2026.
This Delta deal was found by Cheapflights users on 3/31. 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 5/276:00 am
IAD
- MSO
2 stops10h 40m
Delta
Sat 5/303:30 pm
MSO
- IAD
1 stop6h 09m
Delta
Deal found 3/31![Delta logo]()
$278
This Southwest deal was found by Cheapflights users on 4/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:50 am
IAD
- BZN
1 stop6h 25m
Southwest
Wed 4/293:20 pm
BZN
- IAD
1 stop6h 20m
Southwest
Deal found 4/4![Southwest logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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.
Wed 5/276:00 am
IAD
- BZN
1 stop11h 32m
Alaska Airlines
Wed 6/31:57 pm
BZN
- IAD
1 stop8h 02m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 4/2. 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 5/232:35 pm
IAD
- GTF
1 stop8h 59m
United Airlines
Sat 5/302:37 pm
GTF
- IAD
1 stop6h 55m
United Airlines
Deal found 4/2![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 4/4. 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 5/276:18 am
IAD
- MSO
1 stop9h 10m
American Airlines
Sat 5/301:19 pm
MSO
- IAD
2 stops8h 54m
American Airlines
Deal found 4/4![American Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 4/4. 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 4/297:00 am
IAD
- BZN
1 stop9h 35m
Delta
Sun 5/32:53 pm
BZN
- IAD
1 stop7h 49m
Delta
Deal found 4/4![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Mon 9/71:20 pm
IAD
- BZN
1 stop7h 03m
United Airlines
Fri 9/184:05 pm
BZN
- IAD
1 stop6h 39m
United Airlines
Deal found 4/2![United Airlines logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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.
Wed 9/167:00 am
IAD
- HLN
1 stop11h 41m
Alaska Airlines
Tue 9/295:18 pm
HLN
- IAD
1 stop10h 22m
Alaska Airlines
Deal found 4/3![Alaska Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 4/4. 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 8/46:00 am
IAD
- BZN
1 stop6h 59m
Delta
Thu 8/1312:20 pm
BZN
- IAD
1 stop6h 58m
Delta
Deal found 4/4![Delta logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
Tue 6/26:00 am
IAD
- BZN
1 stop11h 32m
Alaska Airlines
Sat 6/611:43 am
BZN
- IAD
1 stop10h 16m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Tue 7/283:30 pm
IAD
- BIL
1 stop8h 45m
United Airlines
Mon 8/34:10 pm
BIL
- IAD
1 stop6h 35m
United Airlines
Deal found 4/2![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 4/4. 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 5/212:35 pm
IAD
- MSO
1 stop9h 27m
Delta
Sat 5/96:05 pm
MSO
- IAD
2 stops13h 11m
Delta
Deal found 4/4![Delta logo]()
$374
This Southwest deal was found by Cheapflights users on 4/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:05 pm
IAD
- BZN
1 stop6h 35m
Southwest
Wed 5/273:20 pm
BZN
- IAD
1 stop6h 20m
Southwest
Deal found 4/2![Southwest logo]()
$453
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/231:12 pm
IAD
- BIL
2 stops12h 03m
American Airlines
Sat 5/3012:42 pm
BIL
- IAD
2 stops9h 31m
American Airlines
Deal found 3/31![American Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 4/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:21 pm
IAD
- GTF
1 stop8h 56m
United Airlines
Wed 4/222:30 pm
GTF
- IAD
1 stop7h 04m
United Airlines
Deal found 4/3![United Airlines logo]()
$408
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 8/269:00 am
IAD
- HLN
1 stop9h 34m
Alaska Airlines
Mon 8/315:11 pm
HLN
- IAD
1 stop10h 29m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 4/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:04 am
IAD
- BIL
2 stops11h 02m
Delta
Sat 4/255:20 am
BIL
- IAD
2 stops12h 36m
Delta
Deal found 4/2![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 4/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:00 pm
IAD
- HLN
1 stop7h 33m
United Airlines
Wed 4/222:25 pm
HLN
- IAD
1 stop7h 09m
United Airlines
Deal found 4/3![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 4/1. 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 8/2910:45 am
IAD
- BIL
2 stops13h 42m
Delta
Wed 9/96:15 am
BIL
- IAD
1 stop5h 13m
Delta
Deal found 4/1![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 3/31. 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 5/318:15 am
IAD
- BZN
1 stop8h 57m
United Airlines
Sat 6/610:20 am
BZN
- IAD
Nonstop4h 08m
United Airlines
Deal found 3/31![United Airlines logo]()
$425
This Delta deal was found by Cheapflights users on 3/31. 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 4/283:00 pm
IAD
- MSO
2 stops11h 16m
Delta
Fri 5/11:40 pm
MSO
- IAD
1 stop8h 04m
Delta
Deal found 3/31![Delta logo]()
$390
This Alaska Airlines deal was found by Cheapflights users on 4/2. 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.
Tue 4/287:10 am
IAD
- HLN
1 stop12h 35m
Alaska Airlines
Sat 5/26:22 pm
HLN
- IAD
1 stop27h 47m
Alaska Airlines
Deal found 4/2![Alaska Airlines logo]()
$493
This Delta deal was found by Cheapflights users on 4/4. 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.
Fri 8/146:40 pm
IAD
- BIL
1 stop5h 57m
Delta
Tue 8/255:45 am
BIL
- IAD
2 stops10h 13m
Delta
Deal found 4/4![Delta logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 4/3. 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 9/57:00 am
IAD
- FCA
2 stops32h 28m
Alaska Airlines
Sat 9/126:08 pm
FCA
- IAD
1 stop9h 32m
Alaska Airlines
Deal found 4/3![Alaska Airlines logo]()
$495
This United Airlines deal was found by Cheapflights users on 4/1. 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 8/262:43 pm
IAD
- BTM
1 stop9h 44m
United Airlines
Tue 9/110:00 am
BTM
- IAD
1 stop7h 21m
United Airlines
Deal found 4/1![United Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 4/1. 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.
Fri 5/297:30 am
IAD
- HLN
1 stop6h 53m
Delta
Tue 6/21:03 pm
HLN
- IAD
2 stops9h 48m
Delta
Deal found 4/1![Delta logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 4/4. 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 4/289:00 am
IAD
- FCA
1 stop29h 03m
Alaska Airlines
Fri 5/17:28 pm
FCA
- IAD
1 stop8h 22m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 3/31. 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 8/295:41 pm
IAD
- BTM
1 stop6h 46m
United Airlines
Tue 9/110:00 am
BTM
- IAD
1 stop7h 21m
United Airlines
Deal found 3/31![United Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 3/31. 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 4/206:00 am
IAD
- FCA
1 stop9h 54m
Delta
Fri 4/246:10 pm
FCA
- IAD
2 stops13h 40m
Delta
Deal found 3/31![Delta logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 4/4. 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 5/236:00 am
IAD
- GTF
1 stop14h 12m
Alaska Airlines
Sat 5/306:52 pm
GTF
- IAD
1 stop10h 42m
Alaska Airlines
Deal found 4/4![Alaska Airlines logo]()
$502
Last-minute flights from Dulles Intl to MontanaDiscover last-minute flight deals from Dulles Intl to Montana. Data last updated April 5, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Montana. Data last updated April 5, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/1. 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 4/186:00 am
IAD
- FCA
1 stop9h 19m
Delta
Fri 5/82:30 pm
FCA
- IAD
1 stop7h 08m
Delta
Deal found 4/1![Delta logo]()
$344
This Southwest deal was found by Cheapflights users on 4/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:50 am
IAD
- BZN
1 stop6h 25m
Southwest
Mon 4/274:20 pm
BZN
- IAD
1 stop6h 00m
Southwest
Deal found 4/4![Southwest logo]()
$349
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/285:20 pm
IAD
- BIL
1 stop6h 45m
United Airlines
Tue 5/52:30 pm
BIL
- IAD
1 stop7h 04m
United Airlines
Deal found 3/31![United Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 3/31. 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 4/2812:12 pm
IAD
- BIL
2 stops12h 42m
Delta
Tue 5/511:33 am
BIL
- IAD
2 stops9h 59m
Delta
Deal found 3/31![Delta logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
Tue 4/287:10 am
IAD
- MSO
1 stop9h 49m
Alaska Airlines
Fri 5/13:55 pm
MSO
- IAD
1 stop11h 55m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$345
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:12 pm
IAD
- MSO
2 stops11h 26m
American Airlines
Tue 6/24:44 pm
MSO
- IAD
1 stop10h 04m
American Airlines
Deal found 4/1![American Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 3/31. 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 5/276:58 pm
IAD
- MSO
1 stop6h 42m
Delta
Sat 5/303:30 pm
MSO
- IAD
1 stop6h 09m
Delta
Deal found 3/31![Delta logo]()
$273
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:18 am
IAD
- MSO
1 stop9h 10m
American Airlines
Sat 5/306:45 am
MSO
- IAD
1 stop9h 49m
American Airlines
Deal found 4/1![American Airlines logo]()
$321
This Delta deal was found by Cheapflights users on 3/31. 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 5/286:58 pm
IAD
- MSO
1 stop6h 42m
Delta
Sat 5/303:30 pm
MSO
- IAD
1 stop6h 09m
Delta
Deal found 3/31![Delta logo]()
$284
This American Airlines deal was found by Cheapflights users on 4/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:18 am
IAD
- MSO
1 stop9h 10m
American Airlines
Sat 5/301:19 pm
MSO
- IAD
2 stops8h 54m
American Airlines
Deal found 4/1![American Airlines logo]()
$337
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Fri 5/292:35 pm
IAD
- HLN
1 stop8h 45m
United Airlines
Tue 6/22:20 pm
HLN
- IAD
1 stop7h 12m
United Airlines
Deal found 4/1![United Airlines logo]()
$273
This United Airlines deal was found by Cheapflights users on 4/2. 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.
Fri 5/2912:50 pm
IAD
- BZN
1 stop9h 49m
United Airlines
Sat 6/610:20 am
BZN
- IAD
Nonstop4h 08m
United Airlines
Deal found 4/2![United Airlines logo]()
$339
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 April 5, 2026.
Search for one-way flight options from Dulles Intl to Montana. Find affordable one-way fares based on user searches. Data last updated April 5, 2026.
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 5/92:37 pm
IAD
- GTF
1 stop8h 41m
United Airlines
Deal found 4/1![United Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 5/611:12 am
IAD
- BZN
2 stops24h 23m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$152
This Delta deal was found by Cheapflights users on 4/1. 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 5/97:30 am
IAD
- MSO
1 stop7h 04m
Delta
Deal found 4/1![Delta logo]()
$157
This Delta deal was found by Cheapflights users on 3/31. 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 9/51:00 pm
IAD
- FCA
2 stops12h 46m
Delta
Deal found 3/31![Delta logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Tue 5/196:37 pm
IAD
- BZN
2 stops47h 08m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Wed 6/1011:12 am
IAD
- MSO
2 stops24h 23m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 4/2. 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.
Tue 6/27:37 pm
IAD
- BZN
3 stops46h 20m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$174
This Southwest deal was found by Cheapflights users on 4/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:55 am
IAD
- BZN
1 stop6h 20m
Southwest
Deal found 4/3![Southwest logo]()
$175
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1012:36 pm
IAD
- GTF
2 stops24h 16m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$176
This Alaska Airlines deal was found by Cheapflights users on 3/31. 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 5/157:37 pm
IAD
- BZN
1 stop20h 37m
Alaska Airlines
Deal found 3/31![Alaska Airlines logo]()
$180
This Alaska Airlines deal was found by Cheapflights users on 4/1. 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.
Sat 8/227:00 am
IAD
- FCA
1 stop12h 28m
Alaska Airlines
Deal found 4/1![Alaska Airlines logo]()
$180
This United Airlines deal was found by Cheapflights users on 4/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:30 am
IAD
- GTF
1 stop9h 11m
United Airlines
Deal found 4/3![United Airlines logo]()
$183
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 April 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $242 (American Airlines) |
One-way from | $131 (United Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $431 |
Good round-trip deal | $499 or less |
Good one-way deal | $283 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 April 5, 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.Missoula
IAD - MSO
IADMSO
Washington, D.C. Dulles Intl
Wed 5/27
6:00 am-2:40 pm
2 stops10h 40m
Missoula Johnson-Bell Field
Sat 5/30
3:30 pm-11:39 pm
1 stop6h 09m
$278
Quickest round-trip
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Sat 4/25
5:50 am-10:15 am
1 stop6h 25m
Bozeman Gallatin Field
Wed 4/29
3:20 pm-11:40 pm
1 stop6h 20m
$349
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Wed 5/27
6:00 am-3:32 pm
1 stop11h 32m
Bozeman Gallatin Field
Wed 6/3
1:57 pm-11:59 pm
1 stop8h 02m
$349
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Wed 4/29
7:00 am-2:35 pm
1 stop9h 35m
Bozeman Gallatin Field
Sun 5/3
2:53 pm-12:42 am
1 stop7h 49m
$349
Washington, D.C.Great Falls
IAD - GTF
IADGTF
Washington, D.C. Dulles Intl
Sat 5/23
2:35 pm-9:34 pm
1 stop8h 59m
Great Falls
Sat 5/30
2:37 pm-11:32 pm
1 stop6h 55m
$364
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Mon 9/7
1:20 pm-6:23 pm
1 stop7h 03m
Bozeman Gallatin Field
Fri 9/18
4:05 pm-12:44 am
1 stop6h 39m
$367
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Wed 9/16
7:00 am-4:41 pm
1 stop11h 41m
Helena
Tue 9/29
5:18 pm-5:40 am
1 stop10h 22m
$369
Washington, D.C.Missoula
IAD - MSO
IADMSO
Washington, D.C. Dulles Intl
Wed 5/27
6:18 am-1:28 pm
1 stop9h 10m
Missoula Johnson-Bell Field
Sat 5/30
1:19 pm-12:13 am
2 stops8h 54m
$374
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Tue 8/4
6:00 am-10:59 am
1 stop6h 59m
Bozeman Gallatin Field
Thu 8/13
12:20 pm-9:18 pm
1 stop6h 58m
$374
Washington, D.C.Missoula
IAD - MSO
IADMSO
Washington, D.C. Dulles Intl
Sat 5/2
12:35 pm-8:02 pm
1 stop9h 27m
Missoula Johnson-Bell Field
Sat 5/9
6:05 pm-9:16 am
2 stops13h 11m
$374
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-BZN
IAD-GTF
IAD-HLN
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-BZN
IAD-GTF
IAD-HLN
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Montana?
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montana (average of $235). Flying from Washington, D.C. Dulles Intl Airport to Montana in March is currently the most expensive (average of $333). 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.
How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Montana?
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 April 5, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta 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.
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 April 5, 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 5 airlines flying from Dulles Intl to Montana
Discover the top 5 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 April 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$505 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$242 | Average$370 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$280 | Average$533 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$384 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$523 | FlexibilityNo cancel fee | On-time75% |