$114+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BZN
Sep 8 — Sep 151
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Dulles Intl to Montana with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Dulles Intl to Montana
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to MontanaExplore the most affordable flight options available from Dulles Intl to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 9, 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 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/116:00 am -
1 stop12h 21m
Mon 9/285:22 pm -
1 stop10h 58m
Deal found 8/4![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/116:00 am -
1 stop15h 53m
Mon 9/148:46 pm -
1 stop31h 34m
Deal found 8/4![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 -
1 stop15h 56m
Mon 9/218:46 pm -
1 stop31h 34m
Deal found 8/8![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 -
1 stop15h 56m
Fri 9/258:33 pm -
1 stop31h 47m
Deal found 8/8![Multiple Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 8/7![Delta logo]()
$348
This Delta deal was found by Cheapflights users on 8/4. 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.
Sun 8/306:00 am -
1 stop6h 21m
Sat 9/52:15 pm -
1 stop8h 19m
Deal found 8/4![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:26 pm -
1 stop6h 41m
Sat 9/125:00 am -
1 stop6h 30m
Deal found 8/7![United Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:12 am -
2 stops34h 44m
Fri 9/258:33 pm -
1 stop31h 47m
Deal found 8/8![Multiple Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/303:15 pm -
2 stops9h 22m
Sat 10/36:21 pm -
2 stops15h 24m
Deal found 8/5![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 8/4. 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 9/226:47 pm -
1 stop6h 55m
Fri 10/23:35 pm -
1 stop5h 48m
Deal found 8/4![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 stop8h 30m
Sat 9/1210:45 am -
1 stop6h 38m
Deal found 8/8![United Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/116:00 am -
1 stop12h 21m
Fri 9/255:11 pm -
1 stop11h 09m
Deal found 8/4![Multiple Airlines logo]()
$360
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 9, 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 9, 2026.
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 8/6![Delta logo]()
$348
This Alaska Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 9/227:00 am -
1 stop10h 17m
Tue 9/294:16 pm -
1 stop11h 24m
Deal found 8/9![Alaska Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 stop8h 30m
Sat 9/1210:45 am -
1 stop6h 38m
Deal found 8/8![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/307:00 am -
1 stop7h 35m
Sat 10/36:21 pm -
2 stops15h 24m
Deal found 8/5![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 9/112:43 pm -
1 stop8h 17m
Sat 9/265:00 am -
1 stop6h 30m
Deal found 8/4![United Airlines logo]()
$370
This Alaska Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 8/299:03 am -
1 stop8h 14m
Wed 9/94:16 pm -
1 stop11h 24m
Deal found 8/5![Alaska Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 10/3010:14 am -
2 stops12h 01m
Tue 11/312:58 pm -
1 stop8h 37m
Deal found 8/8![Delta logo]()
$364
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 8/285:26 pm -
1 stop6h 41m
Mon 8/312:29 pm -
1 stop8h 03m
Deal found 8/5![United Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 11/147:46 am -
1 stop10h 46m
Tue 11/175:12 pm -
1 stop10h 32m
Deal found 8/8![Alaska Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 8/2912:30 pm -
2 stops12h 23m
Wed 9/96:33 pm -
2 stops12h 36m
Deal found 8/7![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/302:43 pm -
1 stop8h 39m
Sat 10/32:37 pm -
1 stop6h 48m
Deal found 8/5![United Airlines logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 10/53:49 pm -
1 stop11h 51m
Deal found 8/6![Alaska Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 8/248:35 am -
1 stop8h 46m
Fri 8/283:58 pm -
1 stop6h 46m
Deal found 8/7![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am -
1 stop6h 21m
Tue 9/13:14 pm -
1 stop6h 25m
Deal found 8/8![Delta logo]()
$394
This Alaska Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/125:46 pm -
1 stop18h 08m
Sat 9/197:03 am -
1 stop20h 37m
Deal found 8/8![Alaska Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Tue 9/222:43 pm -
1 stop8h 29m
Tue 9/292:37 pm -
1 stop6h 48m
Deal found 8/4![United Airlines logo]()
$411
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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.
Wed 9/169:03 am -
1 stop16h 26m
Mon 9/217:29 pm -
1 stop8h 11m
Deal found 8/4![Alaska Airlines logo]()
$440
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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
Mon 10/56:33 pm -
2 stops15h 17m
Deal found 8/6![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 -
1 stop8h 11m
Wed 8/268:37 am -
1 stop8h 46m
Deal found 8/7![United Airlines logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:02 am -
1 stop9h 48m
Tue 10/272:06 pm -
1 stop7h 53m
Deal found 8/8![Alaska Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 8/292:54 pm -
2 stops10h 53m
Wed 9/93:35 pm -
1 stop5h 48m
Deal found 8/6![Delta logo]()
$454
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 1/302:25 pm -
1 stop8h 55m
Wed 2/32:25 pm -
1 stop6h 48m
Deal found 8/6![United Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 8/3010:16 am -
2 stops14h 09m
Tue 9/15:20 am -
2 stops12h 45m
Deal found 8/5![Delta logo]()
$466
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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.
Wed 9/169:03 am -
1 stop15h 58m
Wed 9/237:00 am -
1 stop7h 54m
Deal found 8/4![Alaska Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/298:15 am -
1 stop7h 35m
Wed 9/25:53 pm -
1 stop9h 32m
Deal found 8/8![United Airlines logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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.
Sun 9/137:00 am -
1 stop18h 01m
Wed 9/237:00 am -
1 stop7h 54m
Deal found 8/4![Alaska Airlines logo]()
$480
This Delta deal was found by Cheapflights users on 8/4. 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 9/2212:26 pm -
2 stops12h 11m
Tue 9/296:21 pm -
2 stops15h 24m
Deal found 8/4![Delta logo]()
$489
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/298:15 am -
1 stop7h 06m
Wed 9/97:00 am -
1 stop8h 50m
Deal found 8/8![United Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/235:57 pm -
1 stop24h 42m
Wed 9/305:19 pm -
1 stop10h 21m
Deal found 8/8![Alaska Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 1/302:25 pm -
1 stop8h 34m
Wed 2/32:30 pm -
1 stop6h 43m
Deal found 8/5![United Airlines logo]()
$459
Last-minute flights from Dulles Intl to MontanaDiscover last-minute flight deals from Dulles Intl to Montana. Data last updated August 9, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Montana. Data last updated August 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/4. 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.
Sun 8/306:00 am -
1 stop6h 21m
Sat 9/52:15 pm -
1 stop8h 19m
Deal found 8/4![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 stop8h 30m
Sat 9/1210:45 am -
1 stop6h 38m
Deal found 8/8![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:26 pm -
1 stop6h 41m
Sat 9/125:00 am -
1 stop6h 30m
Deal found 8/7![United Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/116:00 am -
1 stop12h 21m
Mon 9/285:22 pm -
1 stop10h 58m
Deal found 8/4![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/116:00 am -
1 stop15h 53m
Mon 9/148:46 pm -
1 stop31h 34m
Deal found 8/4![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/116:00 am -
1 stop12h 21m
Fri 9/255:11 pm -
1 stop11h 09m
Deal found 8/4![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 -
1 stop15h 56m
Mon 9/218:46 pm -
1 stop31h 34m
Deal found 8/8![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 -
1 stop15h 56m
Fri 9/258:33 pm -
1 stop31h 47m
Deal found 8/8![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/186:00 am -
1 stop15h 43m
Mon 9/218:46 pm -
1 stop31h 34m
Deal found 8/8![Multiple Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:12 am -
2 stops34h 44m
Fri 9/258:33 pm -
1 stop31h 47m
Deal found 8/8![Multiple Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 8/4. 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 9/226:47 pm -
1 stop6h 55m
Fri 10/23:35 pm -
1 stop5h 48m
Deal found 8/4![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/307:00 am -
1 stop7h 35m
Sat 10/36:21 pm -
2 stops15h 24m
Deal found 8/5![Delta logo]()
$354
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 9, 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 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Sun 8/308:59 am -
1 stop28h 25m
Deal found 8/4![Multiple Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Sun 8/308:59 am -
1 stop14h 03m
Deal found 8/4![Multiple Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Thu 9/106:00 am -
1 stop13h 54m
Deal found 8/4![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 -
1 stop9h 07m
Deal found 8/5![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Sun 8/238:59 am -
1 stop31h 50m
Deal found 8/4![Multiple Airlines logo]()
$168
This Alaska Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/157:00 am -
1 stop9h 46m
Deal found 8/5![Alaska Airlines logo]()
$180
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:30 am -
1 stop9h 08m
Deal found 8/6![United Airlines logo]()
$180
This Delta deal was found by Cheapflights users on 8/4. 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 9/57:00 am -
1 stop7h 15m
Deal found 8/4![Delta logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 -
3 stops35h 40m
Deal found 8/6![Multiple Airlines logo]()
$182
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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
Deal found 8/7![Alaska Airlines logo]()
$185
This Expedia deal was found by Cheapflights users on 8/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 am -
1 stop11h 41m
Deal found 8/4![Alaska Airlines logo]()
$185
This American Airlines deal was found by Cheapflights users on 8/4. 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.
Sun 8/305:08 am -
2 stops9h 27m
Deal found 8/4![American Airlines logo]()
$185
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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $296 (Kiwi.com) |
One-way from | $114 (Kiwi.com) |
Popular in | May |
Cheapest in | April |
Average price | $440 |
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 9, 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.Great Falls
IAD Washington, D.C. Dulles Intl - GTF Great Falls
IADGTF
Washington, D.C. Dulles Intl
Wed 9/30
7:00 am-12:35 pm
1 stop7h 35m
Great Falls
Sat 10/3
6:21 pm-11:45 am
2 stops15h 24m
$354
Washington, D.C.Missoula
IAD Washington, D.C. Dulles Intl - MSO Missoula Johnson-Bell Field
IADMSO
Washington, D.C. Dulles Intl
Tue 9/22
7:00 am-3:17 pm
1 stop10h 17m
Missoula Johnson-Bell Field
Tue 9/29
4:16 pm-5:40 am
1 stop11h 24m
$359
Washington, D.C.Cody
IAD Washington, D.C. Dulles Intl - COD Cody E.E. Faust
IADCOD
Washington, D.C. Dulles Intl
Sat 9/5
4:15 pm-10:45 pm
1 stop8h 30m
Cody E.E. Faust
Sat 9/12
10:45 am-7:23 pm
1 stop6h 38m
$359
Washington, D.C.Billings
IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl
IADBIL
Washington, D.C. Dulles Intl
Fri 10/30
10:14 am-8:15 pm
2 stops12h 01m
Billings Logan Intl
Tue 11/3
12:58 pm-11:35 pm
1 stop8h 37m
$364
Washington, D.C.Billings
IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl
IADBIL
Washington, D.C. Dulles Intl
Sat 8/29
12:30 pm-10:53 pm
2 stops12h 23m
Billings Logan Intl
Wed 9/9
6:33 pm-9:09 am
2 stops12h 36m
$369
Washington, D.C.Billings
IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl
IADBIL
Washington, D.C. Dulles Intl
Fri 9/11
2:43 pm-9:00 pm
1 stop8h 17m
Billings Logan Intl
Sat 9/26
5:00 am-1:30 pm
1 stop6h 30m
$370
Washington, D.C.Billings
IAD Washington, D.C. Dulles Intl - BIL Billings Logan Intl
IADBIL
Washington, D.C. Dulles Intl
Fri 8/28
5:26 pm-10:07 pm
1 stop6h 41m
Billings Logan Intl
Mon 8/31
2:29 pm-12:32 am
1 stop8h 03m
$379
Washington, D.C.Great Falls
IAD Washington, D.C. Dulles Intl - GTF Great Falls
IADGTF
Washington, D.C. Dulles Intl
Wed 9/30
2:43 pm-9:22 pm
1 stop8h 39m
Great Falls
Sat 10/3
2:37 pm-11:25 pm
1 stop6h 48m
$383
Washington, D.C.Missoula
IAD Washington, D.C. Dulles Intl - MSO Missoula Johnson-Bell Field
IADMSO
Washington, D.C. Dulles Intl
Sat 8/29
9:03 am-3:17 pm
1 stop8h 14m
Missoula Johnson-Bell Field
Wed 9/9
4:16 pm-5:40 am
1 stop11h 24m
$389
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-BIL
IAD-FCA
IAD-HLN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Montana
IAD-USMT
IAD-MSO
IAD-BZN
IAD-BIL
IAD-FCA
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 $364). 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 9, 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 August.The cheapest round-trip price found within the last 5 days was $359 on Delta (Aug 30-Sep 5).
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 9, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Washington, D.C. Dulles Intl Airport to Montana to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Food
7.0
Entertainment
7.5
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Dulles Intl to Montana
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Montana by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Dulles Intl to Montana by cabin class
Find flights from Dulles Intl to Montana, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Dulles Intl and Montana flights
Browse other Dulles Intl and Montana flight options. Last updated on August 9, 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 9, 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$418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$334 | Average$519 | FlexibilityNo cancel fee | On-time75% |