$136+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Sep 16 — Sep 231
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 17, 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 17, 2026.
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 12/57:00 am -
1 stop7h 31m
Thu 12/101:13 pm -
1 stop8h 24m
Deal found 8/16![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/54:15 pm -
1 stop6h 45m
Wed 9/910:30 am -
1 stop8h 38m
Deal found 8/13![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 10/204:12 pm -
1 stop7h 06m
Sat 10/246:25 am -
1 stop7h 21m
Deal found 8/16![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 9/156:47 pm -
1 stop6h 55m
Wed 9/301:27 pm -
1 stop8h 16m
Deal found 8/15![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 12/86:00 am -
2 stops13h 41m
Tue 12/151:13 pm -
2 stops9h 26m
Deal found 8/16![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 10/318:03 am -
2 stops14h 12m
Tue 11/36:01 am -
1 stop5h 47m
Deal found 8/14![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 11/1712:01 pm -
1 stop9h 56m
Sun 11/226:28 pm -
2 stops12h 43m
Deal found 8/13![Delta logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 10/126:00 am -
1 stop15h 18m
Mon 10/198:08 pm -
2 stops26h 13m
Deal found 8/13![Multiple Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 10/3012:27 pm -
2 stops9h 48m
Wed 11/412:58 pm -
2 stops8h 28m
Deal found 8/16![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 12/87:00 am -
1 stop7h 31m
Wed 12/91:13 pm -
1 stop8h 24m
Deal found 8/16![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 12/107:00 am -
1 stop7h 31m
Mon 12/141:13 pm -
1 stop8h 24m
Deal found 8/16![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:15 am -
Nonstop4h 27m
Thu 9/174:32 pm -
1 stop6h 00m
Deal found 8/17![United Airlines logo]()
$380
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 17, 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 17, 2026.
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 -
1 stop8h 25m
Sat 11/141:13 pm -
1 stop8h 24m
Deal found 8/13![Delta logo]()
$348
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 10/204:12 pm -
1 stop7h 06m
Sat 10/246:25 am -
1 stop7h 21m
Deal found 8/16![United Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 11/117:46 am -
1 stop10h 33m
Sat 11/144:59 pm -
1 stop10h 45m
Deal found 8/13![Alaska Airlines logo]()
$408
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 9/195:15 pm -
2 stops8h 27m
Wed 9/301:27 pm -
1 stop8h 16m
Deal found 8/15![Delta logo]()
$364
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 9/58:15 am -
1 stop7h 06m
Wed 9/95:00 am -
1 stop6h 29m
Deal found 8/16![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 12/87:00 am -
1 stop7h 31m
Wed 12/91:13 pm -
1 stop8h 24m
Deal found 8/16![Delta logo]()
$376
This Alaska Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 -
1 stop10h 17m
Wed 9/94:16 pm -
1 stop11h 24m
Deal found 8/14![Alaska Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:15 pm -
1 stop6h 57m
Sat 9/52:25 pm -
1 stop6h 54m
Deal found 8/17![United Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 8/285:25 pm -
2 stops8h 05m
Sun 9/66:26 am -
1 stop5h 43m
Deal found 8/14![Delta logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:57 pm -
1 stop24h 44m
Wed 9/305:18 pm -
1 stop10h 22m
Deal found 8/16![Alaska Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/152:43 pm -
1 stop8h 36m
Thu 9/248:00 am -
1 stop6h 01m
Deal found 8/17![United Airlines logo]()
$420
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 11/87:23 am -
1 stop9h 18m
Sun 11/153:35 pm -
1 stop5h 45m
Deal found 8/13![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 8/292:43 pm -
1 stop8h 48m
Wed 9/210:38 am -
1 stop6h 45m
Deal found 8/14![United Airlines logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:47 pm -
1 stop26h 58m
Sat 9/263:42 pm -
2 stops11h 58m
Deal found 8/15![Alaska Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 -
1 stop7h 49m
Wed 9/912:57 pm -
1 stop8h 46m
Deal found 8/16![Delta logo]()
$438
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 11/124:10 pm -
1 stop8h 04m
Sat 11/142:01 pm -
1 stop7h 14m
Deal found 8/16![United Airlines logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 -
1 stop10h 17m
Mon 10/57:03 am -
1 stop20h 37m
Deal found 8/13![Alaska Airlines logo]()
$526
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/305:15 pm -
2 stops8h 00m
Tue 10/65:35 am -
2 stops10h 44m
Deal found 8/13![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 8/306:30 am -
1 stop9h 15m
Thu 9/32:35 pm -
1 stop7h 57m
Deal found 8/15![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 10/307:23 am -
1 stop9h 18m
Mon 11/23:36 pm -
1 stop5h 50m
Deal found 8/15![Delta logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 -
1 stop12h 28m
Sat 9/56:15 am -
1 stop8h 29m
Deal found 8/12![Alaska Airlines logo]()
$549
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 8/2610:35 am -
1 stop6h 48m
Sat 9/52:30 pm -
1 stop6h 49m
Deal found 8/13![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 8/306:10 am -
2 stops8h 05m
Thu 9/312:55 pm -
1 stop8h 44m
Deal found 8/15![Delta logo]()
$454
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 10/272:05 pm -
1 stop9h 26m
Sat 10/316:28 am -
1 stop9h 27m
Deal found 8/15![United Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 -
1 stop24h 44m
Wed 9/305:18 pm -
1 stop10h 22m
Deal found 8/16![Alaska Airlines logo]()
$582
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 9/226:47 pm -
1 stop6h 55m
Wed 9/301:27 pm -
1 stop8h 16m
Deal found 8/15![Delta logo]()
$454
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 8/288:20 am -
2 stops9h 34m
Tue 9/14:17 pm -
1 stop11h 38m
Deal found 8/13![United Airlines logo]()
$514
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am -
1 stop7h 28m
Sat 9/51:08 pm -
2 stops9h 26m
Deal found 8/17![Delta logo]()
$469
This Alaska Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 -
1 stop27h 10m
Sat 9/127:03 am -
2 stops33h 11m
Deal found 8/14![Alaska Airlines logo]()
$646
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:35 am -
1 stop6h 48m
Fri 9/44:30 pm -
1 stop6h 14m
Deal found 8/16![United Airlines logo]()
$517
Last-minute flights from Dulles Intl to MontanaDiscover last-minute flight deals from Dulles Intl to Montana. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Montana. Data last updated August 17, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 9/16:00 pm -
1 stop7h 16m
Thu 9/101:37 pm -
1 stop7h 46m
Deal found 8/16![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/54:15 pm -
1 stop6h 45m
Wed 9/910:30 am -
1 stop8h 38m
Deal found 8/13![United Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/57:00 am -
2 stops37h 15m
Thu 9/109:49 pm -
1 stop30h 31m
Deal found 8/13![Multiple Airlines logo]()
$383
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 -
1 stop8h 29m
Wed 9/92:25 pm -
1 stop6h 54m
Deal found 8/14![United Airlines logo]()
$383
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” 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 9/54:15 pm -
1 stop7h 52m
Sat 9/122:29 pm -
1 stop6h 50m
Deal found 8/16![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:15 am -
Nonstop4h 27m
Thu 9/174:32 pm -
1 stop6h 00m
Deal found 8/17![United Airlines logo]()
$380
This Booking.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:00 am -
1 stop10h 17m
Sat 9/194:16 pm -
1 stop11h 24m
Deal found 8/15![Alaska Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” 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 9/156:47 pm -
1 stop6h 55m
Wed 9/301:27 pm -
1 stop8h 16m
Deal found 8/15![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/1510:15 am -
2 stops14h 22m
Tue 9/226:21 pm -
2 stops15h 24m
Deal found 8/13![Delta logo]()
$359
This Expedia deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:47 pm -
1 stop26h 58m
Wed 9/232:21 pm -
1 stop13h 19m
Deal found 8/13![Alaska Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/176:00 am -
1 stop16h 52m
Sun 9/209:42 pm -
1 stop30h 38m
Deal found 8/13![Multiple Airlines logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:57 pm -
1 stop17h 57m
Sat 9/262:21 pm -
1 stop13h 19m
Deal found 8/17![Alaska Airlines logo]()
$389
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 17, 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 17, 2026.
This Trip.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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.
Mon 9/216:00 am -
1 stop15h 56m
Deal found 8/13![Multiple Airlines logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/296:13 pm -
3 stops40h 53m
Deal found 8/13![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/176:00 am -
1 stop16h 52m
Deal found 8/13![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/1211:12 am -
2 stops35h 40m
Deal found 8/13![Multiple Airlines logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/236:13 pm -
3 stops51h 30m
Deal found 8/12![Multiple Airlines logo]()
$168
This Trip.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/227:00 am -
1 stop10h 17m
Deal found 8/13![Alaska Airlines logo]()
$173
This Jettzy deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:00 am -
1 stop9h 46m
Deal found 8/13![Alaska Airlines logo]()
$178
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” 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 9/291:10 pm -
1 stop8h 02m
Deal found 8/14![United Airlines logo]()
$180
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:57 pm -
1 stop17h 57m
Deal found 8/17![Alaska Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 -
1 stop14h 03m
Deal found 8/13![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/249:04 pm -
2 stops24h 39m
Deal found 8/12![Multiple Airlines logo]()
$187
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:43 pm -
1 stop8h 17m
Deal found 8/16![United Airlines logo]()
$190
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 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (Delta) |
One-way from | $136 (Trip.com) |
Popular in | July |
Cheapest in | April |
Average price | $442 |
Good round-trip deal | $349 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 17, 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 Washington, D.C. Dulles Intl - GTF Great Falls
IADGTF
Washington, D.C. Dulles Intl
Sun 11/1
6:13 am-12:38 pm
1 stop8h 25m
Great Falls
Sat 11/14
1:13 pm-11:37 pm
1 stop8h 24m
$348
Washington, D.C.Helena
IAD Washington, D.C. Dulles Intl - HLN Helena
IADHLN
Washington, D.C. Dulles Intl
Tue 10/20
4:12 pm-9:18 pm
1 stop7h 06m
Helena
Sat 10/24
6:25 am-3:46 pm
1 stop7h 21m
$359
Washington, D.C.Missoula
IAD Washington, D.C. Dulles Intl - MSO Missoula Johnson-Bell Field
IADMSO
Washington, D.C. Dulles Intl
Sat 9/19
5:15 pm-11:42 pm
2 stops8h 27m
Missoula Johnson-Bell Field
Wed 9/30
1:27 pm-11:43 pm
1 stop8h 16m
$364
Washington, D.C.Great Falls
IAD Washington, D.C. Dulles Intl - GTF Great Falls
IADGTF
Washington, D.C. Dulles Intl
Tue 12/8
7:00 am-12:31 pm
1 stop7h 31m
Great Falls
Wed 12/9
1:13 pm-11:37 pm
1 stop8h 24m
$376
Washington, D.C.Billings
IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl
IADBIL
Washington, D.C. Dulles Intl
Sat 9/5
8:15 am-1:21 pm
1 stop7h 06m
Billings Logan Intl
Wed 9/9
5:00 am-1:29 pm
1 stop6h 29m
$394
Washington, D.C.Billings
IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl
IADBIL
Washington, D.C. Dulles Intl
Fri 8/28
5:25 pm-11:30 pm
2 stops8h 05m
Billings Logan Intl
Sun 9/6
6:26 am-2:09 pm
1 stop5h 43m
$399
Washington, D.C.Great Falls
IAD Washington, D.C. Dulles Intl - GTF Great Falls
IADGTF
Washington, D.C. Dulles Intl
Wed 11/11
7:46 am-4:19 pm
1 stop10h 33m
Great Falls
Sat 11/14
4:59 pm-5:44 am
1 stop10h 45m
$408
Washington, D.C.Kalispell
IAD Washington, D.C. Dulles Intl - FCA Kalispell Glacier Park
IADFCA
Washington, D.C. Dulles Intl
Sun 11/8
7:23 am-2:41 pm
1 stop9h 18m
Kalispell Glacier Park
Sun 11/15
3:35 pm-11:20 pm
1 stop5h 45m
$409
Washington, D.C.Great Falls
IAD Washington, D.C. Dulles Intl - GTF Great Falls
IADGTF
Washington, D.C. Dulles Intl
Tue 9/1
4:15 pm-9:12 pm
1 stop6h 57m
Great Falls
Sat 9/5
2:25 pm-11:19 pm
1 stop6h 54m
$418
Washington, D.C.Bozeman
IAD Washington, D.C. Dulles Intl - BZN Bozeman Gallatin Field
IADBZN
Washington, D.C. Dulles Intl
Tue 9/15
2:43 pm-9:19 pm
1 stop8h 36m
Bozeman Gallatin Field
Thu 9/24
8:00 am-4:01 pm
1 stop6h 01m
$420
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-GTF
IAD-BIL
IAD-HLN
IAD-MSO
IAD-FCA
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-GTF
IAD-BIL
IAD-HLN
IAD-MSO
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 $366). 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 17, 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 typical for this route at the moment.
Washington, D.C. Dulles Intl Airport to Montana flights typically cost between $379 and $728 in September.The cheapest round-trip price found within the last 5 days was $380 on United Airlines (Sep 12-Sep 17).
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 August 17, 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
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
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 August 17, 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 August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$493 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$278 | Average$463 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$280 | Average$526 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$289 | Average$418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$334 | Average$519 | FlexibilityNo cancel fee | On-time75% |