$75+ Cheap flights from Missouri to Washington
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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SEA
Nov 8 — Nov 151
Round-trip
1 adult, Economy
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Cheapest flights from Missouri to WashingtonExplore the most affordable flight options available from Missouri to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 9, 2026.
Explore the most affordable flight options available from Missouri to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 9, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:30 pm -
1 stop23h 29m
Thu 10/299:13 pm -
1 stop13h 20m
Deal found 10/9![Frontier logo]()
$219
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/265:50 pm -
2 stops8h 50m
Thu 10/298:05 am -
1 stop13h 20m
Deal found 10/7![Southwest logo]()
$220
This American Airlines deal was found by Cheapflights users on 10/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:26 am -
1 stop8h 54m
Fri 11/1312:47 pm -
1 stop8h 46m
Deal found 10/5![American Airlines logo]()
$222
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:25 am -
1 stop14h 05m
Mon 10/2612:10 am -
1 stop8h 40m
Deal found 10/5![Southwest logo]()
$223
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:35 pm -
2 stops9h 40m
Tue 11/105:40 am -
2 stops9h 45m
Deal found 10/7![Southwest logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:28 pm -
1 stop22h 17m
Fri 11/204:37 pm -
2 stops21h 43m
Deal found 10/7![Frontier logo]()
$226
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:35 pm -
2 stops9h 10m
Sat 10/242:15 pm -
1 stop6h 40m
Deal found 10/7![Southwest logo]()
$227
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:04 am -
1 stop9h 03m
Sat 10/3112:34 am -
1 stop9h 13m
Deal found 10/8![American Airlines logo]()
$228
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Thu 11/58:00 am -
1 stop8h 39m
Wed 11/117:00 am -
1 stop6h 43m
Deal found 10/7![United Airlines logo]()
$229
This Expedia deal was found by Cheapflights users on 10/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:00 am -
Nonstop4h 36m
Tue 11/178:22 am -
Nonstop4h 03m
Deal found 10/6![Alaska Airlines logo]()
$231
This Southwest deal was found by Cheapflights users on 10/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:20 am -
1 stop8h 30m
Fri 12/117:55 am -
2 stops9h 15m
Deal found 10/4![Southwest logo]()
$232
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1411:20 am -
1 stop8h 30m
Thu 12/179:25 pm -
1 stop13h 00m
Deal found 10/8![Southwest logo]()
$233
Best flights from Missouri to WashingtonDiscover carefully curated flight deals from Missouri to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
Discover carefully curated flight deals from Missouri to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Sun 11/225:28 pm -
1 stop7h 39m
Thu 11/267:00 am -
1 stop6h 43m
Deal found 10/8![United Airlines logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Fri 11/136:00 am -
Nonstop4h 36m
Tue 11/178:22 am -
Nonstop4h 03m
Deal found 10/6![Alaska Airlines logo]()
$236
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:30 pm -
1 stop6h 55m
Sat 1/97:50 am -
2 stops9h 35m
Deal found 10/7![Southwest logo]()
$266
This Delta deal was found by Cheapflights users on 10/4. 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.
Mon 10/195:35 pm -
1 stop8h 24m
Thu 10/225:30 am -
1 stop6h 02m
Deal found 10/4![Delta logo]()
$277
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:14 am -
1 stop8h 09m
Sat 11/1412:51 pm -
1 stop7h 00m
Deal found 10/8![American Airlines logo]()
$341
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Wed 10/289:48 am -
2 stops15h 02m
Sat 10/318:24 am -
1 stop6h 54m
Deal found 10/6![Alaska Airlines logo]()
$266
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:30 pm -
1 stop6h 25m
Sat 10/316:45 am -
1 stop4h 35m
Deal found 10/8![Southwest logo]()
$281
This Delta deal was found by Cheapflights users on 10/6. 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.
Thu 12/176:00 am -
1 stop6h 45m
Sun 12/206:20 pm -
Nonstop3h 31m
Deal found 10/6![Delta logo]()
$287
This United Airlines deal was found by Cheapflights users on 10/5. 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 11/44:39 pm -
1 stop6h 40m
Sun 11/85:05 am -
2 stops8h 38m
Deal found 10/5![United Airlines logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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.
Fri 11/276:00 am -
Nonstop4h 18m
Fri 12/46:34 pm -
Nonstop3h 25m
Deal found 10/8![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 10/7. 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 11/217:00 am -
Nonstop4h 11m
Fri 11/275:35 am -
1 stop6h 29m
Deal found 10/7![Delta logo]()
$287
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/142:05 pm -
2 stops9h 05m
Thu 12/175:15 am -
2 stops11h 55m
Deal found 10/8![Southwest logo]()
$288
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:45 pm -
1 stop12h 40m
Mon 11/911:20 am -
2 stops11h 35m
Deal found 10/5![Southwest logo]()
$299
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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.
Thu 1/73:54 pm -
Nonstop4h 32m
Mon 1/189:05 am -
Nonstop3h 51m
Deal found 10/9![Alaska Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 10/8. 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.
Thu 11/122:20 pm -
1 stop6h 04m
Tue 11/172:07 pm -
1 stop7h 15m
Deal found 10/8![Delta logo]()
$305
This American Airlines deal was found by Cheapflights users on 10/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:01 am -
2 stops10h 38m
Sun 11/152:13 pm -
1 stop8h 11m
Deal found 10/6![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Wed 1/277:30 am -
2 stops11h 55m
Tue 2/27:05 am -
1 stop9h 03m
Deal found 10/9![United Airlines logo]()
$346
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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.
Mon 11/166:00 am -
Nonstop4h 36m
Thu 11/198:22 am -
Nonstop4h 03m
Deal found 10/8![Alaska Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 10/8. 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.
Wed 11/116:13 am -
1 stop7h 53m
Mon 11/165:04 pm -
1 stop5h 36m
Deal found 10/8![Delta logo]()
$305
This Southwest deal was found by Cheapflights users on 10/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:25 pm -
1 stop6h 25m
Wed 12/162:15 pm -
1 stop6h 50m
Deal found 10/4![Southwest logo]()
$306
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Tue 12/15:02 pm -
1 stop6h 23m
Tue 12/159:00 am -
2 stops12h 30m
Deal found 10/7![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:50 am -
1 stop7h 05m
Tue 11/177:35 am -
2 stops10h 15m
Deal found 10/5![Southwest logo]()
$312
This American Airlines deal was found by Cheapflights users on 10/9. 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.
Sat 10/246:00 am -
1 stop7h 50m
Wed 10/2812:49 pm -
1 stop7h 04m
Deal found 10/9![American Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 10/7. 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.
Tue 10/276:30 am -
1 stop7h 45m
Sat 10/311:54 pm -
1 stop6h 26m
Deal found 10/7![Delta logo]()
$316
This Alaska Airlines deal was found by Cheapflights users on 10/7. 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.
Fri 11/136:00 am -
Nonstop4h 36m
Fri 11/206:08 pm -
Nonstop3h 51m
Deal found 10/7![Alaska Airlines logo]()
$321
This United Airlines deal was found by Cheapflights users on 10/6. 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.
Thu 11/269:01 am -
1 stop5h 47m
Thu 12/39:00 am -
2 stops11h 56m
Deal found 10/6![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:28 pm -
1 stop8h 14m
Tue 12/1511:39 pm -
1 stop8h 08m
Deal found 10/8![American Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 10/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:45 pm -
1 stop12h 40m
Sun 11/811:20 am -
2 stops11h 35m
Deal found 10/6![Southwest logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 10/4. 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.
Thu 12/310:25 am -
2 stops12h 31m
Sat 12/512:30 am -
1 stop7h 05m
Deal found 10/4![Alaska Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 10/7. 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 12/2610:03 am -
1 stop8h 54m
Wed 12/306:20 pm -
Nonstop3h 31m
Deal found 10/7![Delta logo]()
$337
Last-minute flights from Missouri to WashingtonDiscover last-minute flight deals from Missouri to Washington. Data last updated October 9, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Washington. Data last updated October 9, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:35 pm -
2 stops9h 10m
Sat 10/242:15 pm -
1 stop6h 40m
Deal found 10/7![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 10/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:25 am -
1 stop14h 05m
Mon 10/2612:10 am -
1 stop8h 40m
Deal found 10/5![Southwest logo]()
$223
This Alaska Airlines deal was found by Cheapflights users on 10/6. 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.
Sat 10/246:02 am -
Nonstop4h 31m
Sat 10/319:40 am -
Nonstop4h 04m
Deal found 10/6![Alaska Airlines logo]()
$234
This Cheapflightsfares deal was found by Cheapflights users on 10/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/261:30 pm -
1 stop23h 29m
Thu 10/299:13 pm -
1 stop13h 20m
Deal found 10/9![Frontier logo]()
$219
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/265:50 pm -
2 stops8h 50m
Thu 10/298:05 am -
1 stop13h 20m
Deal found 10/7![Southwest logo]()
$220
This American Airlines deal was found by Cheapflights users on 10/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:04 am -
1 stop9h 03m
Sat 10/3112:34 am -
1 stop9h 13m
Deal found 10/8![American Airlines logo]()
$228
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:35 pm -
2 stops9h 40m
Tue 11/105:40 am -
2 stops9h 45m
Deal found 10/7![Southwest logo]()
$225
This United Airlines deal was found by Cheapflights users on 10/7. 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.
Thu 11/58:00 am -
1 stop8h 39m
Wed 11/117:00 am -
1 stop6h 43m
Deal found 10/7![United Airlines logo]()
$229
This American Airlines deal was found by Cheapflights users on 10/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:00 am -
1 stop10h 15m
Mon 11/911:34 pm -
1 stop9h 19m
Deal found 10/7![American Airlines logo]()
$235
This American Airlines deal was found by Cheapflights users on 10/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:26 am -
1 stop8h 54m
Fri 11/1312:47 pm -
1 stop8h 46m
Deal found 10/5![American Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:28 pm -
1 stop22h 17m
Fri 11/204:37 pm -
2 stops21h 43m
Deal found 10/7![Frontier logo]()
$226
This Expedia deal was found by Cheapflights users on 10/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:00 am -
Nonstop4h 36m
Tue 11/178:22 am -
Nonstop4h 03m
Deal found 10/6![Alaska Airlines logo]()
$231
One-way flights from Missouri to WashingtonSearch for one-way flight options from Missouri to Washington. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
Search for one-way flight options from Missouri to Washington. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
This Super.com deal was found by Cheapflights users on 10/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:28 pm -
1 stop23h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$75
This Southwest deal was found by Cheapflights users on 10/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:20 am -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Southwest logo]()
$79
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:05 am -
1 stop7h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Tue 12/88:32 pm -
1 stop21h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 10/6. 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.
Tue 10/278:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 10/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:59 pm -
1 stop21h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 10/5. 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.
Mon 10/261:30 pm -
1 stop23h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Frontier logo]()
$88
This Delta deal was found by Cheapflights users on 10/7. 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.
Wed 10/286:21 am -
1 stop8h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Delta logo]()
$89
This Southwest deal was found by Cheapflights users on 10/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/266:10 pm -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Southwest logo]()
$90
This Delta deal was found by Cheapflights users on 10/6. 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 10/212:22 pm -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Delta logo]()
$93
This Super.com deal was found by Cheapflights users on 10/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![Frontier logo]()
$94
This Trip.com deal was found by Cheapflights users on 10/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$96
Find flight deals from Missouri to Washington
Keep the following information in mind while searching for Missouri to Washington flight deals. Data was last updated October 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $219 (Cheapflightsfares) |
One-way from | $75 (Super.com) |
Popular in | July |
Cheapest in | February |
Average price | $381 |
Good round-trip deal | $447 or less |
Good one-way deal | $229 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Washington 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 9, 2026.
Use the filters below to find and compare flights from Missouri to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSeattle
STL Lambert-St Louis - SEA Seattle/Tacoma Intl
STLSEA
Lambert-St Louis
Tue 11/3
11:20 am-5:50 pm
1 stop8h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$79
St. LouisSeattle
STL Lambert-St Louis - SEA Seattle/Tacoma Intl
STLSEA
Lambert-St Louis
Fri 10/30
5:50 pm-12:40 am
2 stops8h 50m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$85
St. LouisSeattle
STL Lambert-St Louis - SEA Seattle/Tacoma Intl
STLSEA
Lambert-St Louis
Thu 11/5
9:45 pm-8:25 am
1 stop12h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$85
St. LouisSeattle
STL Lambert-St Louis - SEA Seattle/Tacoma Intl
STLSEA
Lambert-St Louis
Mon 10/26
6:10 pm-12:40 am
1 stop8h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$90
St. LouisSeattle
STL Lambert-St Louis - SEA Seattle/Tacoma Intl
STLSEA
Lambert-St Louis
Tue 10/20
2:35 pm-9:45 pm
2 stops9h 10m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$98
St. LouisSeattle
STL Lambert-St Louis - SEA Seattle/Tacoma Intl
STLSEA
Lambert-St Louis
Fri 11/27
6:13 am-12:29 pm
1 stop8h 16m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$110
St. LouisSeattle
STL Lambert-St Louis - SEA Seattle/Tacoma Intl
STLSEA
Lambert-St Louis
Thu 12/17
6:09 pm-11:16 pm
1 stop7h 07m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$114
Kansas CitySpokane
MCI Kansas City - GEG Spokane
MCIGEG
Kansas City
Sat 10/31
9:00 am-3:25 pm
1 stop8h 25m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$131
Kansas CitySpokane
MCI Kansas City - GEG Spokane
MCIGEG
Kansas City
Sat 11/7
3:45 pm-8:05 pm
1 stop6h 20m
Spokane
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$131
St. LouisSeattle
STL Lambert-St Louis - SEA Seattle/Tacoma Intl
STLSEA
Lambert-St Louis
Mon 10/26
1:30 pm-10:59 am
1 stop23h 29m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$136
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Missouri to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from Missouri with our price prediction graph.
STL-SEA
MCI-GEG
SGF-GEG
MCI-SEA
STL-GEG
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
USMO-USWA
STL-SEA
MCI-GEG
SGF-GEG
MCI-SEA
What is the cheapest month to book a flight from Missouri to State of Washington?
Currently, February is the cheapest month in which you can book a flight from Missouri to State of Washington (average of $265). Flying from Missouri to State of Washington in July is currently the most expensive (average of $512). 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 WA?
Find hourly flight availability from Missouri to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 9, 2026.
It’s typically best to fly out from Missouri to State of Washington in the evening. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.
How much does it cost to fly round-trip from Missouri to State of Washington?
Airfare is below average for this route at the moment.
Missouri to State of Washington flights typically cost between $248 and $477 in October.The cheapest round-trip price found within the last 5 days was $219 on Frontier (Oct 26-Oct 29).
How far ahead should I book a flight from Missouri to State of Washington?
To ensure you get the cheapest price possible for a flight from Missouri to State of Washington, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Missouri to State of Washington?
Use this chart to determine the cheapest time to fly round-trip from Missouri to Washington. Price data was last updated on October 3, 2026.
Travelers seeking maximum savings on their Missouri to State of Washington flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated October 9, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Southwest, andDelta from Missouri to Washington to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Missouri to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Missouri to Washington
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Complete your trip
Complete your trip to Washington by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Washington by cabin class
Find flights from Missouri to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Washington flights
Browse other Missouri and Washington flight options. Last updated on October 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Washington
Find the right flight back to Missouri after your stay in Washington
Missouri to Washington flights
Consider these flights traveling from Missouri to Washington.
Top 6 airlines flying from Missouri to Washington
Discover the top 6 airlines that operate flights from Missouri to Washington. 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 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$129 | Average$301 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$134 | Average$416 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$152 | Average$442 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$186 | Average$488 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$197 | Average$498 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$216 | Average$465 | FlexibilityNo cancel fee | On-time69% |