$113+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Sep 1 — Sep 81
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 August 2, 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 August 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Fri 9/116:00 am
IAD
- BIL
1 stop12h 21m
Multiple Airlines
Mon 9/145:22 pm
BIL
- IAD
1 stop10h 58m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/106:00 am
IAD
- MSO
1 stop16h 59m
Multiple Airlines
Sun 9/139:49 pm
MSO
- IAD
1 stop30h 31m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/246:00 am
IAD
- MSO
1 stop16h 59m
Multiple Airlines
Sun 9/279:49 pm
MSO
- IAD
1 stop30h 31m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 7/30. 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 8/257:00 am
IAD
- WYS
1 stop7h 27m
Delta
Sat 8/2911:29 am
WYS
- IAD
1 stop6h 30m
Delta
Deal found 7/30![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 7/31. 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.
Sun 11/16:13 am
IAD
- GTF
1 stop8h 25m
Delta
Sat 11/141:13 pm
GTF
- IAD
1 stop8h 24m
Delta
Deal found 7/31![Delta logo]()
$348
This American Airlines deal was found by Cheapflights users on 7/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:10 am
IAD
- BZN
1 stop7h 53m
American Airlines
Tue 8/256:26 am
BZN
- IAD
1 stop10h 01m
American Airlines
Deal found 7/28![American Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 7/31. 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 8/246:49 pm
IAD
- MSO
1 stop6h 58m
Delta
Fri 8/281:16 pm
MSO
- IAD
1 stop8h 23m
Delta
Deal found 7/31![Delta logo]()
$359
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:01 am
IAD
- BZN
2 stops9h 24m
American Airlines
Tue 11/31:42 pm
BZN
- IAD
1 stop7h 37m
American Airlines
Deal found 7/29![American Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 7/28. 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.
Sat 8/222:54 pm
IAD
- BIL
2 stops9h 59m
Delta
Sat 8/2911:51 am
BIL
- IAD
1 stop6h 08m
Delta
Deal found 7/28![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 7/31. 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 10/287:23 am
IAD
- MSO
2 stops12h 22m
Delta
Sun 11/11:14 pm
MSO
- IAD
1 stop8h 21m
Delta
Deal found 7/31![Delta logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Thu 8/278:59 am
IAD
- BZN
1 stop9h 07m
Multiple Airlines
Thu 9/36:44 pm
BZN
- IAD
2 stops21h 45m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 9/269:03 am
IAD
- GTF
1 stop9h 36m
Alaska Airlines
Fri 10/25:19 pm
GTF
- IAD
1 stop10h 21m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$368
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 August 2, 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 August 2, 2026.
This Delta deal was found by Cheapflights users on 7/30. 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 8/257:00 am
IAD
- WYS
1 stop7h 27m
Delta
Sat 8/2911:29 am
WYS
- IAD
1 stop6h 30m
Delta
Deal found 7/30![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 10/221:10 pm
IAD
- BZN
1 stop8h 02m
United Airlines
Sat 10/248:00 am
BZN
- IAD
1 stop7h 44m
United Airlines
Deal found 7/29![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 10/17:00 am
IAD
- MSO
1 stop10h 17m
Alaska Airlines
Mon 10/53:49 pm
MSO
- IAD
1 stop11h 51m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 1/66:00 am
IAD
- BZN
1 stop9h 16m
Delta
Sun 1/106:00 am
BZN
- IAD
1 stop5h 48m
Delta
Deal found 7/28![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 10/36:10 am
IAD
- BZN
1 stop7h 35m
United Airlines
Sat 10/178:00 am
BZN
- IAD
1 stop7h 44m
United Airlines
Deal found 7/28![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 11/46:13 am
IAD
- BZN
1 stop7h 54m
Delta
Sun 11/81:12 pm
BZN
- IAD
1 stop8h 23m
Delta
Deal found 7/28![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 8/287:00 am
IAD
- BZN
1 stop9h 13m
United Airlines
Sat 9/510:25 am
BZN
- IAD
Nonstop3h 56m
United Airlines
Deal found 7/31![United Airlines logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:57 pm
IAD
- HLN
1 stop24h 44m
Alaska Airlines
Wed 9/305:18 pm
HLN
- IAD
1 stop10h 22m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 7/28. 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.
Sat 8/222:54 pm
IAD
- BIL
2 stops9h 59m
Delta
Sat 8/296:24 pm
BIL
- IAD
2 stops12h 56m
Delta
Deal found 7/28![Delta logo]()
$370
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 8/247:00 am
IAD
- BZN
1 stop9h 13m
United Airlines
Sat 8/2910:25 am
BZN
- IAD
Nonstop3h 56m
United Airlines
Deal found 7/31![United Airlines logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 9/127:47 pm
IAD
- BZN
1 stop26h 58m
Alaska Airlines
Sat 9/197:03 am
BZN
- IAD
1 stop20h 37m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$420
This Delta deal was found by Cheapflights users on 7/29. 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 9/267:00 am
IAD
- GTF
1 stop7h 35m
Delta
Sat 10/36:21 pm
GTF
- IAD
2 stops15h 24m
Delta
Deal found 7/29![Delta logo]()
$374
This United Airlines deal was found by Cheapflights users on 7/30. 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 1/64:08 pm
IAD
- FCA
1 stop7h 22m
United Airlines
Tue 1/122:29 pm
FCA
- IAD
1 stop6h 44m
United Airlines
Deal found 7/30![United Airlines logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 9/215:57 pm
IAD
- BIL
1 stop19h 43m
Alaska Airlines
Fri 9/257:29 pm
BIL
- IAD
1 stop8h 11m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 7/29. 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.
Wed 8/266:49 pm
IAD
- BZN
1 stop6h 27m
Delta
Wed 9/23:55 pm
BZN
- IAD
1 stop5h 26m
Delta
Deal found 7/29![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/267:00 am
IAD
- BZN
1 stop9h 13m
United Airlines
Sun 8/3010:25 am
BZN
- IAD
Nonstop3h 56m
United Airlines
Deal found 7/28![United Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/255:57 pm
IAD
- GTF
1 stop24h 42m
Alaska Airlines
Thu 10/15:19 pm
GTF
- IAD
1 stop10h 21m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 7/29. 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.
Thu 11/267:00 am
IAD
- BZN
1 stop7h 05m
Delta
Tue 12/81:40 pm
BZN
- IAD
1 stop7h 40m
Delta
Deal found 7/29![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 9/225:57 pm
IAD
- GTF
1 stop24h 42m
Alaska Airlines
Thu 10/15:19 pm
GTF
- IAD
1 stop10h 21m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 7/29. 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.
Thu 8/206:49 pm
IAD
- BIL
1 stop6h 41m
Delta
Tue 8/256:26 am
BIL
- IAD
2 stops11h 39m
Delta
Deal found 7/29![Delta logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 10/279:38 am
IAD
- BIL
1 stop11h 14m
Alaska Airlines
Sat 10/3112:05 pm
BIL
- IAD
1 stop9h 54m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 8/205:26 pm
IAD
- BIL
1 stop6h 41m
United Airlines
Mon 8/242:29 pm
BIL
- IAD
1 stop8h 03m
United Airlines
Deal found 7/30![United Airlines logo]()
$479
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 8/297:00 am
IAD
- BZN
1 stop9h 38m
Alaska Airlines
Tue 9/12:21 pm
BZN
- IAD
1 stop13h 19m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 1/64:08 pm
IAD
- HLN
1 stop6h 51m
United Airlines
Sat 1/92:30 pm
HLN
- IAD
1 stop6h 43m
United Airlines
Deal found 7/31![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 7/29. 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 8/226:00 am
IAD
- BZN
1 stop6h 21m
Delta
Wed 8/263:55 pm
BZN
- IAD
1 stop5h 26m
Delta
Deal found 7/29![Delta logo]()
$439
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:03 am
IAD
- MSO
1 stop8h 14m
Alaska Airlines
Sat 9/261:19 pm
MSO
- IAD
2 stops14h 21m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$450
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 9/167:00 am
IAD
- FCA
1 stop6h 47m
Delta
Tue 9/292:40 pm
FCA
- IAD
1 stop6h 43m
Delta
Deal found 7/28![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 10/208:15 am
IAD
- FCA
1 stop7h 13m
United Airlines
Fri 10/2312:26 pm
FCA
- IAD
1 stop8h 26m
United Airlines
Deal found 7/30![United Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 9/307:00 am
IAD
- MSO
1 stop10h 17m
Alaska Airlines
Sun 10/43:49 pm
MSO
- IAD
1 stop11h 51m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 8/2. 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 8/292:23 pm
IAD
- BIL
1 stop7h 49m
Delta
Wed 9/96:33 pm
BIL
- IAD
2 stops12h 36m
Delta
Deal found 8/2![Delta logo]()
$445
Last-minute flights from Dulles Intl to MontanaDiscover last-minute flight deals from Dulles Intl to Montana. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Montana. Data last updated August 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:10 am
IAD
- BZN
1 stop7h 53m
American Airlines
Tue 8/256:26 am
BZN
- IAD
1 stop10h 01m
American Airlines
Deal found 7/28![American Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 7/28. 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.
Sat 8/222:54 pm
IAD
- BIL
2 stops9h 59m
Delta
Sat 8/2911:51 am
BIL
- IAD
1 stop6h 08m
Delta
Deal found 7/28![Delta logo]()
$364
This American Airlines deal was found by Cheapflights users on 8/1. 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 8/227:57 am
IAD
- BZN
2 stops14h 40m
American Airlines
Mon 8/316:26 am
BZN
- IAD
2 stops14h 29m
American Airlines
Deal found 8/1![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:57 am
IAD
- BZN
2 stops14h 40m
American Airlines
Sat 8/296:26 am
BZN
- IAD
2 stops12h 30m
American Airlines
Deal found 7/29![American Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/224:15 pm
IAD
- BZN
1 stop7h 04m
United Airlines
Sat 8/292:30 pm
BZN
- IAD
1 stop6h 49m
United Airlines
Deal found 7/31![United Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 7/31. 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 8/246:49 pm
IAD
- MSO
1 stop6h 58m
Delta
Fri 8/281:16 pm
MSO
- IAD
1 stop8h 23m
Delta
Deal found 7/31![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 8/247:00 am
IAD
- BZN
1 stop9h 13m
United Airlines
Sat 8/2910:25 am
BZN
- IAD
Nonstop3h 56m
United Airlines
Deal found 7/31![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 7/30. 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 8/257:00 am
IAD
- WYS
1 stop7h 27m
Delta
Wed 9/21:09 pm
WYS
- IAD
1 stop8h 30m
Delta
Deal found 7/30![Delta logo]()
$344
This Delta deal was found by Cheapflights users on 7/30. 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 8/257:00 am
IAD
- WYS
1 stop7h 27m
Delta
Sat 8/2911:29 am
WYS
- IAD
2 stops11h 05m
Delta
Deal found 7/30![Delta logo]()
$354
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/256:10 am
IAD
- BZN
1 stop7h 53m
American Airlines
Mon 8/316:26 am
BZN
- IAD
2 stops14h 29m
American Airlines
Deal found 7/30![American Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 7/30. 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.
Wed 8/266:49 pm
IAD
- BZN
1 stop6h 27m
Delta
Wed 9/23:14 pm
BZN
- IAD
1 stop6h 25m
Delta
Deal found 7/30![Delta logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Thu 8/278:59 am
IAD
- BZN
1 stop9h 07m
Multiple Airlines
Thu 9/36:44 pm
BZN
- IAD
2 stops21h 45m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$367
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 August 2, 2026.
Search for one-way flight options from Dulles Intl to Montana. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/278:59 am
IAD
- MSO
1 stop14h 03m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/246:00 am
IAD
- BZN
1 stop16h 52m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/106:00 am
IAD
- BZN
1 stop13h 54m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$141
This United Airlines deal was found by Cheapflights users on 7/29. 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 8/287:00 am
IAD
- BZN
1 stop9h 13m
United Airlines
Deal found 7/29![United Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/246:00 am
IAD
- MSO
1 stop16h 59m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 8/208:59 am
IAD
- BZN
1 stop9h 07m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Mon 9/146:00 am
IAD
- FCA
1 stop15h 56m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Tue 9/297:50 am
IAD
- BZN
3 stops51h 16m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$176
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 9/217:00 am
IAD
- BZN
1 stop9h 46m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$180
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 9/236:47 pm
IAD
- MSO
1 stop6h 55m
Delta
Deal found 7/28![Delta logo]()
$180
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/18:15 am
IAD
- BIL
1 stop7h 06m
United Airlines
Deal found 7/31![United Airlines logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Wed 9/167:50 am
IAD
- BZN
3 stops39h 02m
Multiple Airlines
Deal found 7/30![Multiple 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 August 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $283 (Kiwi.com) |
One-way from | $113 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $430 |
Good round-trip deal | $445 or less |
Good one-way deal | $169 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 August 2, 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.West Yellowstone
IAD - WYS
IADWYS
Washington, D.C. Dulles Intl
Tue 8/25
7:00 am-12:27 pm
1 stop7h 27m
West Yellowstone
Sat 8/29
11:29 am-7:59 pm
1 stop6h 30m
$344
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Thu 10/22
1:10 pm-7:12 pm
1 stop8h 02m
Bozeman Gallatin Field
Sat 10/24
8:00 am-5:44 pm
1 stop7h 44m
$359
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Wed 1/6
6:00 am-1:16 pm
1 stop9h 16m
Bozeman Gallatin Field
Sun 1/10
6:00 am-1:48 pm
1 stop5h 48m
$359
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Sat 10/3
6:10 am-11:45 am
1 stop7h 35m
Bozeman Gallatin Field
Sat 10/17
8:00 am-5:44 pm
1 stop7h 44m
$359
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Wed 11/4
6:13 am-12:07 pm
1 stop7h 54m
Bozeman Gallatin Field
Sun 11/8
1:12 pm-11:35 pm
1 stop8h 23m
$359
Washington, D.C.Billings
IAD - BIL
IADBIL
Washington, D.C. Dulles Intl
Sat 8/22
2:54 pm-10:53 pm
2 stops9h 59m
Billings Logan Intl
Sat 8/29
6:24 pm-9:20 am
2 stops12h 56m
$370
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Fri 8/28
7:00 am-2:13 pm
1 stop9h 13m
Bozeman Gallatin Field
Sat 9/5
10:25 am-4:21 pm
Nonstop3h 56m
$374
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Mon 8/24
7:00 am-2:13 pm
1 stop9h 13m
Bozeman Gallatin Field
Sat 8/29
10:25 am-4:21 pm
Nonstop3h 56m
$374
Washington, D.C.Great Falls
IAD - GTF
IADGTF
Washington, D.C. Dulles Intl
Sat 9/26
7:00 am-12:35 pm
1 stop7h 35m
Great Falls
Sat 10/3
6:21 pm-11:45 am
2 stops15h 24m
$374
Washington, D.C.Bozeman
IAD - BZN
IADBZN
Washington, D.C. Dulles Intl
Wed 8/26
6:49 pm-11:16 pm
1 stop6h 27m
Bozeman Gallatin Field
Wed 9/2
3:55 pm-11:21 pm
1 stop5h 26m
$379
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-WYS
IAD-BZN
IAD-MSO
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-WYS
IAD-BZN
IAD-MSO
IAD-HLN
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Montana?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Montana (average of $355). Flying from Washington, D.C. Dulles Intl Airport to Montana in December is currently the most expensive (average of $682). 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 August 2, 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?
Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Montana flights typically cost between $379 and $726 in January.The cheapest round-trip price found within the last 5 days was $359 on United Airlines (Jan 16-Jan 23).
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 49 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 August 2, 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.
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Crew
8.6
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 August 2, 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 August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$241 | Average$398 | 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$391 | FlexibilityNo cancel fee | On-timeN/A |