$67+ Cheap flights from Missouri to Washington, D.C. (WAS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — WAS
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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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
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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 Missouri to Washington, D.C.
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Cheapest flights from Missouri to Washington, D.C.Explore the most affordable flight options available from Missouri to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Missouri to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:40 pm -
2 stops7h 15m
Tue 12/18:25 am -
Nonstop2h 30m
Deal found 10/27![Southwest logo]()
$258
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:15 pm -
2 stops17h 59m
Tue 12/110:33 pm -
2 stops13h 33m
Deal found 10/27![Frontier logo]()
$258
This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop19h 04m
Mon 11/161:00 pm -
1 stop7h 47m
Deal found 10/26![Frontier logo]()
$259
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:20 pm -
2 stops19h 53m
Sat 12/195:30 am -
2 stops20h 11m
Deal found 10/28![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop19h 04m
Wed 11/181:00 pm -
1 stop7h 47m
Deal found 10/28![Frontier logo]()
$260
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:45 am -
Nonstop2h 20m
Fri 12/41:00 pm -
1 stop6h 50m
Deal found 10/28![Southwest logo]()
$261
This CheapOair deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:20 pm -
1 stop25h 08m
Fri 12/118:26 pm -
1 stop28h 46m
Deal found 10/27![Frontier logo]()
$261
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:50 pm -
Nonstop2h 35m
Mon 11/235:55 pm -
Nonstop3h 00m
Deal found 10/30![United Airlines logo]()
$261
This Trip.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:43 pm -
1 stop14h 26m
Thu 11/196:00 pm -
1 stop26h 34m
Deal found 10/29![Frontier logo]()
$262
This Mytrip deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:26 pm -
2 stops23h 46m
Wed 11/186:07 pm -
2 stops19h 26m
Deal found 10/25![Frontier logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:01 pm -
1 stop28h 01m
Tue 12/110:33 pm -
2 stops22h 00m
Deal found 10/29![Multiple Airlines logo]()
$262
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:20 am -
1 stop4h 40m
Mon 11/234:55 pm -
1 stop8h 15m
Deal found 10/27![Southwest logo]()
$263
Best flights from Missouri to Washington, D.C.Discover carefully curated flight deals from Missouri to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Missouri to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:15 pm -
Nonstop1h 55m
Mon 11/2312:00 pm -
2 stops8h 10m
Deal found 10/28![Southwest logo]()
$258
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/87:03 am -
1 stop4h 54m
Tue 12/87:40 pm -
1 stop5h 25m
Deal found 10/29![Delta logo]()
$263
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/217:45 am -
1 stop7h 13m
Mon 1/255:16 pm -
1 stop7h 14m
Deal found 10/26![United Airlines logo]()
$270
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1110:17 am -
1 stop6h 47m
Sun 12/133:13 pm -
1 stop8h 04m
Deal found 10/30![American Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3011:26 am -
1 stop24h 34m
Fri 1/810:37 pm -
2 stops34h 19m
Deal found 10/30![Multiple Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/211:15 pm -
1 stop6h 40m
Wed 12/1611:00 am -
2 stops6h 35m
Deal found 10/30![Southwest logo]()
$259
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/26:00 am -
1 stop6h 38m
Sat 12/55:39 pm -
1 stop5h 08m
Deal found 10/25![United Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/1812:15 pm -
1 stop6h 23m
Tue 1/56:00 am -
1 stop5h 10m
Deal found 10/27![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:50 pm -
Nonstop1h 55m
Fri 11/278:25 am -
Nonstop2h 30m
Deal found 10/27![Southwest logo]()
$263
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/178:00 am -
Nonstop2h 10m
Tue 12/15:40 pm -
1 stop6h 19m
Deal found 10/26![United Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/1310:55 am -
1 stop4h 45m
Thu 1/217:07 pm -
1 stop5h 32m
Deal found 10/26![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/238:15 am -
Nonstop2h 25m
Mon 1/49:15 pm -
1 stop4h 20m
Deal found 10/28![Southwest logo]()
$263
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:09 am -
1 stop5h 35m
Sun 1/176:00 am -
1 stop4h 58m
Deal found 10/28![American Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/45:55 pm -
1 stop4h 28m
Tue 12/811:30 am -
1 stop6h 36m
Deal found 10/25![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:00 pm -
Nonstop1h 55m
Fri 12/116:10 am -
1 stop4h 55m
Deal found 10/26![Southwest logo]()
$273
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 2/1310:20 am -
1 stop5h 10m
Sat 2/206:10 am -
1 stop4h 36m
Deal found 10/26![Delta logo]()
$277
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 1/15:00 am -
1 stop6h 59m
Tue 1/55:06 pm -
1 stop6h 35m
Deal found 10/25![American Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/312:25 pm -
Nonstop2h 35m
Mon 12/712:35 pm -
Nonstop3h 00m
Deal found 10/29![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/195:28 pm -
1 stop5h 05m
Wed 12/306:00 am -
1 stop4h 53m
Deal found 10/27![Delta logo]()
$277
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/227:12 am -
1 stop4h 37m
Tue 12/12:50 pm -
1 stop5h 38m
Deal found 10/25![American Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:00 pm -
Nonstop1h 55m
Sun 11/222:40 pm -
Nonstop2h 25m
Deal found 10/26![Southwest logo]()
$290
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:31 pm -
1 stop6h 10m
Mon 11/236:00 am -
1 stop7h 15m
Deal found 10/30![Delta logo]()
$281
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/311:25 am -
1 stop5h 07m
Mon 12/75:40 pm -
1 stop4h 43m
Deal found 10/26![United Airlines logo]()
$342
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/193:46 pm -
1 stop5h 15m
Wed 12/27:00 am -
2 stops10h 56m
Deal found 10/28![American Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:55 am -
1 stop7h 20m
Sun 11/222:40 pm -
Nonstop2h 25m
Deal found 10/26![Southwest logo]()
$300
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 1/1510:42 am -
Nonstop2h 02m
Sun 1/178:28 pm -
Nonstop2h 38m
Deal found 10/25![American Airlines logo]()
$346
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/231:00 pm -
Nonstop2h 09m
Tue 12/15:55 pm -
Nonstop2h 35m
Deal found 10/29![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 -
1 stop7h 01m
Tue 12/1511:30 am -
1 stop6h 50m
Deal found 10/25![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/36:00 am -
1 stop6h 38m
Sun 12/68:15 am -
1 stop5h 08m
Deal found 10/26![United Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:26 pm -
1 stop4h 29m
Mon 11/166:22 pm -
1 stop4h 53m
Deal found 10/28![American Airlines logo]()
$358
Last-minute flights from Missouri to Washington, D.C.Discover last-minute flight deals from Missouri to Washington, D.C.. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Washington, D.C.. Data last updated October 30, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop19h 04m
Mon 11/161:00 pm -
1 stop7h 47m
Deal found 10/26![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop19h 04m
Wed 11/181:00 pm -
1 stop7h 47m
Deal found 10/28![Frontier logo]()
$260
This Mytrip deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:26 pm -
2 stops23h 46m
Wed 11/186:07 pm -
2 stops19h 26m
Deal found 10/25![Frontier logo]()
$262
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:40 pm -
2 stops7h 15m
Tue 12/18:25 am -
Nonstop2h 30m
Deal found 10/27![Southwest logo]()
$258
This Trip.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:43 pm -
1 stop14h 26m
Thu 11/196:00 pm -
1 stop26h 34m
Deal found 10/29![Frontier logo]()
$262
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:20 am -
1 stop4h 40m
Mon 11/234:55 pm -
1 stop8h 15m
Deal found 10/27![Southwest logo]()
$263
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:50 pm -
Nonstop2h 35m
Mon 11/235:55 pm -
Nonstop3h 00m
Deal found 10/30![United Airlines logo]()
$261
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:04 pm -
2 stops20h 10m
Wed 11/256:50 am -
1 stop11h 50m
Deal found 10/26![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:01 pm -
1 stop28h 01m
Tue 12/110:33 pm -
2 stops22h 00m
Deal found 10/29![Multiple Airlines logo]()
$262
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:26 pm -
1 stop3h 55m
Thu 12/312:34 pm -
1 stop4h 50m
Deal found 10/29![Delta logo]()
$263
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:15 pm -
2 stops17h 59m
Tue 12/110:33 pm -
2 stops13h 33m
Deal found 10/27![Frontier logo]()
$258
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:45 am -
Nonstop2h 20m
Fri 12/41:00 pm -
1 stop6h 50m
Deal found 10/28![Southwest logo]()
$261
One-way flights from Missouri to Washington, D.C.Search for one-way flight options from Missouri to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Missouri to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/256:35 pm -
1 stop16h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/912:02 pm -
1 stop25h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:24 pm -
1 stop15h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$80
This Cheapflightsfares deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:21 pm -
1 stop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$82
This Priceline deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/306:21 pm -
1 stop5h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/18:29 pm -
1 stop15h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$90
This Jetabroad deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:29 pm -
1 stop15h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$94
This Trip.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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.
Sat 11/211:29 pm -
1 stop14h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$94
This Super.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates ” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/211:20 pm -
1 stop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Frontier logo]()
$98
This Super.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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.
Wed 11/2511:11 am -
1 stop8h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$98
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:04 pm -
1 stop20h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$104
This Super.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/178:43 pm -
1 stop14h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$104
Find flight deals from Missouri to Washington, D.C.
Keep the following information in mind while searching for Missouri to Washington, D.C. flight deals. Data was last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $258 (Southwest) |
One-way from | $67 (Kiwi.com) |
Popular in | May |
Cheapest in | October |
Average price | $309 |
Good round-trip deal | $337 or less |
Good one-way deal | $188 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Washington, D.C. 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 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Missouri to Washington, D.C. that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Kansas CityWashington, D.C.
MCI Kansas City - DCA Washington, D.C. Reagan-National
MCIDCA
Kansas City
Wed 12/9
8:32 pm-4:55 pm
1 stop19h 23m
Washington, D.C. Reagan-National
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$90
St. LouisWashington, D.C.
STL Lambert-St Louis - DCA Washington, D.C. Reagan-National
STLDCA
Lambert-St Louis
Wed 12/16
7:54 pm-9:59 pm
1 stop25h 05m
Washington, D.C. Reagan-National
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$104
Kansas CityWashington, D.C.
MCI Kansas City - IAD Washington, D.C. Dulles Intl
MCIIAD
Kansas City
Wed 12/9
5:50 pm-9:25 pm
Nonstop2h 35m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$106
Kansas CityWashington, D.C.
MCI Kansas City - IAD Washington, D.C. Dulles Intl
MCIIAD
Kansas City
Tue 12/1
5:55 pm-11:23 pm
1 stop4h 28m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$116
Kansas CityWashington, D.C.
MCI Kansas City - DCA Washington, D.C. Reagan-National
MCIDCA
Kansas City
Wed 12/9
7:00 am-3:05 pm
2 stops7h 05m
Washington, D.C. Reagan-National
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$121
Kansas CityWashington, D.C.
MCI Kansas City - DCA Washington, D.C. Reagan-National
MCIDCA
Kansas City
Mon 12/7
7:00 am-3:05 pm
2 stops7h 05m
Washington, D.C. Reagan-National
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$121
St. LouisWashington, D.C.
STL Lambert-St Louis - IAD Washington, D.C. Dulles Intl
STLIAD
Lambert-St Louis
Wed 12/9
8:30 am-11:35 am
Nonstop2h 05m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$122
Quickest round-trip
St. LouisWashington, D.C.
STL Lambert-St Louis - DCA Washington, D.C. Reagan-National
STLDCA
Lambert-St Louis
Wed 11/25
7:50 pm-10:45 pm
Nonstop1h 55m
Washington, D.C. Reagan-National
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$122
St. LouisWashington, D.C.
STL Lambert-St Louis - DCA Washington, D.C. Reagan-National
STLDCA
Lambert-St Louis
Mon 11/23
3:55 pm-6:50 pm
Nonstop1h 55m
Washington, D.C. Reagan-National
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$122
St. LouisWashington, D.C.
STL Lambert-St Louis - DCA Washington, D.C. Reagan-National
STLDCA
Lambert-St Louis
Wed 12/16
4:00 pm-6:55 pm
Nonstop1h 55m
Washington, D.C. Reagan-National
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$122
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Washington, D.C.
Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Missouri with our price prediction graph.
STL-DCA
STL-IAD
MCI-DCA
MCI-IAD
SGF-DCA
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 Missouri to Washington, D.C.
USMO-WAS
STL-DCA
STL-IAD
MCI-DCA
MCI-IAD
What is the cheapest month to book a flight from Missouri to Washington, D.C.?
Currently, December is the cheapest month in which you can book a flight from Missouri to Washington, D.C. (average of $355). Flying from Missouri to Washington, D.C. in July is currently the most expensive (average of $422). 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 MO to WAS?
Find hourly flight availability from Missouri to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.
When flying from Missouri to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 19% versus a flight in the afternoon.
How much does it cost to fly round-trip from Missouri to Washington, D.C.?
Airfare is below average for this route at the moment.
Missouri to Washington, D.C. flights typically cost between $315 and $515 in November.The cheapest round-trip price found within the last 5 days was $258 on Southwest (Nov 17-Dec 1).
How far ahead should I book a flight from Missouri to Washington, D.C.?
The best time to book flights from Missouri to Washington, D.C. is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Missouri to Washington, D.C.?
Use this chart to determine the cheapest time to fly round-trip from Missouri to Washington, D.C.. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Missouri to Washington, D.C. flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsAlexandria
Woodbridge
Arlington
Owings Mills
Lanham
Reston
Herndon
Hyattsville
Rockville
Springfield
Fredericksburg
Tysons
Falls Church
Towson
Silver Spring
Oxon Hill
Laurel
Clinton
Hunt Valley
Waldorf
Browse thousands of different options on Cheapflights for your next trip
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Washington, D.C. flight routes
Alternative routes for Missouri to Washington, D.C.
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Complete your trip
Complete your trip to Washington, D.C. by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Washington, D.C. by cabin class
Find flights from Missouri to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Washington, D.C. flights
Browse other Missouri and Washington, D.C. flight options. Last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Missouri to Washington, D.C. flights
Consider these flights traveling from Missouri to Washington, D.C..
Other flights to Washington, D.C.
Explore flights to Washington, D.C. departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Top 6 airlines flying from Missouri to Washington, D.C.
Discover the top 6 airlines that operate flights from Missouri to Washington, D.C.. 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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$224 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$153 | Average$391 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$200 | Average$339 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$212 | Average$428 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$237 | Average$444 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$251 | Average$413 | FlexibilityNo cancel fee | On-time63% |