$129+ Cheap flights from Dulles Intl (IAD) to Missouri
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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — STL
Sep 13 — Sep 201
Round-trip
1 adult, Economy
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Cheapest flights from Dulles Intl to MissouriExplore the most affordable flight options available from Dulles Intl to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
Explore the most affordable flight options available from Dulles Intl to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 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.
Wed 9/211:10 am -
1 stop6h 28m
Sun 9/65:23 pm -
1 stop6h 11m
Deal found 8/13![Delta logo]()
$242
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.
Thu 8/274:52 pm -
1 stop23h 36m
Mon 8/316:45 pm -
1 stop12h 19m
Deal found 8/13![Frontier logo]()
$244
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 9/2412:30 pm -
2 stops23h 47m
Fri 9/252:29 pm -
1 stop8h 41m
Deal found 8/13![Frontier logo]()
$245
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:15 pm -
1 stop5h 45m
Fri 9/48:40 am -
Nonstop2h 14m
Deal found 8/12![United Airlines logo]()
$246
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 9/177:50 am -
2 stops28h 37m
Mon 9/212:29 pm -
1 stop8h 41m
Deal found 8/12![Frontier logo]()
$247
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am -
2 stops14h 17m
Fri 9/182:29 pm -
1 stop8h 41m
Deal found 8/14![Frontier logo]()
$248
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.
Sat 9/199:04 pm -
2 stops13h 31m
Mon 9/212:29 pm -
1 stop8h 41m
Deal found 8/12![Frontier logo]()
$250
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.
Thu 9/108:25 am -
Nonstop2h 14m
Sat 9/128:40 am -
Nonstop2h 14m
Deal found 8/14![United Airlines logo]()
$251
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:54 pm -
1 stop19h 17m
Sun 9/65:02 pm -
1 stop15h 48m
Deal found 8/12![Frontier logo]()
$252
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/18:20 am -
1 stop4h 42m
Thu 9/38:30 am -
1 stop4h 25m
Deal found 8/11![United Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:39 pm -
1 stop21h 43m
Tue 9/85:27 pm -
2 stops29h 43m
Deal found 8/10![Frontier logo]()
$256
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/511:06 am -
1 stop4h 27m
Sun 9/67:00 am -
1 stop5h 43m
Deal found 8/10![Delta logo]()
$257
Best flights from Dulles Intl to MissouriDiscover carefully curated flight deals from Dulles Intl to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
Discover carefully curated flight deals from Dulles Intl to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:15 pm -
1 stop5h 45m
Fri 9/48:40 am -
Nonstop2h 14m
Deal found 8/12![United Airlines logo]()
$246
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 10/2112:29 pm -
1 stop4h 59m
Thu 10/2210:14 am -
1 stop4h 35m
Deal found 8/13![Delta logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/1012:42 pm -
1 stop24h 08m
Wed 9/1612:20 pm -
2 stops20h 57m
Deal found 8/11![Multiple Airlines logo]()
$345
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:01 am -
1 stop7h 04m
Tue 10/275:33 pm -
1 stop5h 00m
Deal found 8/9![American Airlines logo]()
$379
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:02 pm -
1 stop4h 39m
Mon 10/127:01 pm -
1 stop4h 57m
Deal found 8/12![United Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/166:00 am -
1 stop6h 15m
Fri 9/185:30 pm -
1 stop6h 11m
Deal found 8/11![Delta logo]()
$287
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:55 pm -
Nonstop3h 00m
Fri 11/1311:33 am -
Nonstop2h 27m
Deal found 8/12![United Airlines logo]()
$267
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:08 am -
1 stop7h 58m
Fri 9/256:54 pm -
1 stop4h 47m
Deal found 8/12![Delta logo]()
$287
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/211:10 pm -
1 stop5h 33m
Fri 10/2311:50 am -
Nonstop2h 29m
Deal found 8/11![United Airlines logo]()
$277
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:15 pm -
1 stop4h 45m
Thu 9/245:30 pm -
1 stop6h 11m
Deal found 8/9![Delta logo]()
$307
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 9/85:44 pm -
Nonstop2h 48m
Sat 9/1212:20 pm -
Nonstop2h 30m
Deal found 8/14![United Airlines logo]()
$283
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.
Sat 9/1212:30 pm -
1 stop24h 20m
Fri 9/1812:20 pm -
2 stops20h 57m
Deal found 8/12![Multiple Airlines logo]()
$399
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:05 am -
1 stop4h 42m
Mon 11/95:53 pm -
1 stop4h 28m
Deal found 8/9![Delta logo]()
$307
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:44 pm -
Nonstop2h 48m
Thu 9/246:39 pm -
1 stop5h 19m
Deal found 8/9![United Airlines logo]()
$297
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
1 stop5h 42m
Wed 9/235:34 pm -
1 stop6h 07m
Deal found 8/12![Delta logo]()
$319
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 10/105:20 pm -
1 stop6h 35m
Tue 10/136:15 am -
1 stop4h 40m
Deal found 8/14![United Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/125:15 pm -
1 stop6h 19m
Mon 9/216:15 am -
1 stop4h 34m
Deal found 8/10![United Airlines logo]()
$308
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:10 am -
1 stop4h 45m
Mon 11/93:30 pm -
1 stop5h 06m
Deal found 8/9![Delta logo]()
$359
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:44 pm -
Nonstop2h 48m
Sat 9/512:10 pm -
Nonstop2h 30m
Deal found 8/12![United Airlines logo]()
$313
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 10/96:05 am -
1 stop4h 39m
Sun 10/117:20 pm -
1 stop4h 22m
Deal found 8/14![Delta logo]()
$365
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.
Mon 9/145:45 pm -
1 stop7h 14m
Fri 9/1811:10 am -
Nonstop2h 30m
Deal found 8/14![United Airlines logo]()
$315
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:15 am -
1 stop7h 39m
Sat 10/36:06 am -
1 stop7h 05m
Deal found 8/12![Delta logo]()
$378
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.
Tue 9/15:15 pm -
1 stop5h 29m
Tue 9/811:10 am -
Nonstop2h 30m
Deal found 8/13![United Airlines logo]()
$323
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.
Thu 10/158:03 am -
1 stop7h 37m
Mon 10/193:25 pm -
1 stop4h 56m
Deal found 8/13![Delta logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/166:10 am -
1 stop5h 38m
Sun 10/251:00 pm -
Nonstop2h 09m
Deal found 8/11![United Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/255:15 pm -
1 stop6h 40m
Sat 8/293:12 pm -
1 stop5h 08m
Deal found 8/10![United Airlines logo]()
$338
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.
Thu 10/16:10 am -
1 stop7h 03m
Mon 10/58:30 am -
Nonstop2h 16m
Deal found 8/13![United Airlines logo]()
$351
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:14 am -
1 stop5h 26m
Fri 10/235:32 pm -
1 stop15h 38m
Deal found 8/12![Delta logo]()
$493
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/58:25 am -
Nonstop2h 14m
Mon 9/71:00 pm -
Nonstop2h 06m
Deal found 8/10![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/158:25 am -
Nonstop2h 14m
Thu 9/178:30 am -
1 stop6h 31m
Deal found 8/10![United Airlines logo]()
$368
Last-minute flights from Dulles Intl to MissouriDiscover last-minute flight deals from Dulles Intl to Missouri. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Missouri. Data last updated August 14, 2026 and is based on user searches.
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.
Thu 8/274:52 pm -
1 stop23h 36m
Mon 8/316:45 pm -
1 stop12h 19m
Deal found 8/13![Frontier logo]()
$244
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:15 pm -
1 stop5h 45m
Fri 9/48:40 am -
Nonstop2h 14m
Deal found 8/12![United Airlines logo]()
$246
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/18:20 am -
1 stop4h 42m
Thu 9/38:30 am -
1 stop4h 25m
Deal found 8/11![United Airlines logo]()
$253
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 9/211:10 am -
1 stop6h 28m
Sun 9/65:23 pm -
1 stop6h 11m
Deal found 8/13![Delta logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:39 pm -
1 stop21h 43m
Tue 9/85:27 pm -
2 stops29h 43m
Deal found 8/10![Frontier logo]()
$256
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:54 pm -
1 stop19h 17m
Sun 9/65:02 pm -
1 stop15h 48m
Deal found 8/12![Frontier logo]()
$252
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/511:06 am -
1 stop4h 27m
Sun 9/67:00 am -
1 stop5h 43m
Deal found 8/10![Delta logo]()
$257
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.
Thu 9/108:25 am -
Nonstop2h 14m
Sat 9/128:40 am -
Nonstop2h 14m
Deal found 8/14![United Airlines logo]()
$251
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am -
2 stops14h 17m
Fri 9/182:29 pm -
1 stop8h 41m
Deal found 8/14![Frontier logo]()
$248
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 9/177:50 am -
2 stops28h 37m
Mon 9/212:29 pm -
1 stop8h 41m
Deal found 8/12![Frontier logo]()
$247
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.
Sat 9/199:04 pm -
2 stops13h 31m
Mon 9/212:29 pm -
1 stop8h 41m
Deal found 8/12![Frontier logo]()
$250
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 9/2412:30 pm -
2 stops23h 47m
Fri 9/252:29 pm -
1 stop8h 41m
Deal found 8/13![Frontier logo]()
$245
One-way flights from Dulles Intl to MissouriSearch for one-way flight options from Dulles Intl to Missouri. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
Search for one-way flight options from Dulles Intl to Missouri. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:59 am -
1 stop9h 51m
Deal found 8/14![Frontier logo]()
$129
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.
Mon 10/59:04 pm -
2 stops39h 28m
Deal found 8/12![Frontier logo]()
$130
This KAYAK deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:26 pm -
1 stop4h 28m
Deal found 8/11![Delta logo]()
$131
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am -
1 stop16h 45m
Deal found 8/9![Frontier logo]()
$133
This Frontier deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:00 am -
1 stop10h 05m
Deal found 8/10![Frontier logo]()
$135
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:04 pm -
2 stops23h 33m
Deal found 8/9![Frontier logo]()
$137
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.
Fri 11/271:15 pm -
1 stop4h 44m
Deal found 8/14![United Airlines logo]()
$138
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:04 pm -
2 stops23h 33m
Deal found 8/9![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/1810:27 am -
2 stops33h 50m
Deal found 8/11![Frontier logo]()
$139
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:36 pm -
3 stops41h 56m
Deal found 8/14![Multiple Airlines logo]()
$140
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/98:25 am -
Nonstop2h 14m
Deal found 8/11![United Airlines logo]()
$141
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/113:15 pm -
1 stop7h 32m
Deal found 8/10![United Airlines logo]()
$141
Find flight deals from Dulles Intl to Missouri
Keep the following information in mind while searching for Dulles Intl to Missouri flight deals. Data was last updated August 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $242 (Delta) |
One-way from | $129 (Super.com) |
Popular in | July |
Cheapest in | October |
Average price | $381 |
Good round-trip deal | $405 or less |
Good one-way deal | $239 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Missouri 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 14, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Missouri that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.St. Louis
IAD Washington, D.C. Dulles Intl - STL Lambert-St Louis
IADSTL
Washington, D.C. Dulles Intl
Tue 9/1
5:15 pm-10:00 pm
1 stop5h 45m
Lambert-St Louis
Fri 9/4
8:40 am-11:54 am
Nonstop2h 14m
$246
Washington, D.C.St. Louis
IAD Washington, D.C. Dulles Intl - STL Lambert-St Louis
IADSTL
Washington, D.C. Dulles Intl
Sat 10/10
4:02 pm-7:41 pm
1 stop4h 39m
Lambert-St Louis
Mon 10/12
7:01 pm-12:58 am
1 stop4h 57m
$263
Washington, D.C.St. Louis
IAD Washington, D.C. Dulles Intl - STL Lambert-St Louis
IADSTL
Washington, D.C. Dulles Intl
Wed 10/21
12:29 pm-4:28 pm
1 stop4h 59m
Lambert-St Louis
Thu 10/22
10:14 am-3:49 pm
1 stop4h 35m
$265
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Tue 11/10
5:55 pm-7:55 pm
Nonstop3h 00m
Kansas City
Fri 11/13
11:33 am-3:00 pm
Nonstop2h 27m
$267
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Wed 10/21
1:10 pm-5:43 pm
1 stop5h 33m
Kansas City
Fri 10/23
11:50 am-3:19 pm
Nonstop2h 29m
$277
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Tue 9/8
5:44 pm-7:32 pm
Nonstop2h 48m
Kansas City
Sat 9/12
12:20 pm-3:50 pm
Nonstop2h 30m
$283
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Wed 9/16
6:00 am-11:15 am
1 stop6h 15m
Kansas City
Fri 9/18
5:30 pm-12:41 am
1 stop6h 11m
$287
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Tue 9/22
8:08 am-3:06 pm
1 stop7h 58m
Kansas City
Fri 9/25
6:54 pm-12:41 am
1 stop4h 47m
$287
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Mon 9/21
5:44 pm-7:32 pm
Nonstop2h 48m
Kansas City
Thu 9/24
6:39 pm-12:58 am
1 stop5h 19m
$297
Washington, D.C.Kansas City
IAD Washington, D.C. Dulles Intl - MCI Kansas City
IADMCI
Washington, D.C. Dulles Intl
Tue 9/22
3:15 pm-7:00 pm
1 stop4h 45m
Kansas City
Thu 9/24
5:30 pm-12:41 am
1 stop6h 11m
$307
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Dulles Intl to Missouri
Have a flexible travel schedule? Discover the best time to fly to Missouri from Dulles Intl with our price prediction graph.
IAD-STL
IAD-MCI
IAD-TBN
IAD-SGF
IAD-COU
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 Missouri
IAD-USMO
IAD-STL
IAD-MCI
IAD-TBN
IAD-SGF
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Missouri?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Missouri (average of $352). Flying from Washington, D.C. Dulles Intl Airport to Missouri in June is currently the most expensive (average of $564). 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 MO?
Find hourly flight availability from Dulles Intl to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2026.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Missouri at noon. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the afternoon.
Weekly flight availability from Washington, D.C. Dulles Intl Airport to Missouri
Explore weekly flight availability from Dulles Intl to Missouri. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 14, 2026.
The most flights from IAD to USMO are scheduled on a Monday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Missouri?
Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Missouri flights typically cost between $368 and $665 in September.The cheapest round-trip price found within the last 5 days was $242 on Delta (Sep 2-Sep 6).
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Missouri?
Booking 67 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Missouri. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Missouri?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Missouri. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Missouri flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Missouri
Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated August 14, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Washington, D.C. Dulles Intl Airport to Missouri to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Crew
8.5
Boarding
8.1
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
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Alternative routes for Dulles Intl to Missouri
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Complete your trip
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Dulles Intl and Missouri flights
Browse other Dulles Intl and Missouri flight options. Last updated on August 14, 2026.
Popular flight searches
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Dulles Intl to Missouri flights
Consider these flights traveling from Dulles Intl to Missouri.
Top 4 airlines flying from Dulles Intl to Missouri
Discover the top 4 airlines that operate flights from Dulles Intl to Missouri. 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 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$239 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$407 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$248 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$456 | FlexibilityNo cancel fee | On-time71% |