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$90 Find cheap flights from Missouri to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
sáb. 7/6
sáb. 7/13

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In the last 7 days travelers have searched 44,060,346 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

June

Cheapest flight

$90
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from St. Louis to Washington Dulles Airport

FAQs for booking Missouri to Washington Dulles Airport flights

  • How does KAYAK find such low prices on flights from Missouri to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missouri to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Missouri with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Missouri to Washington Dulles Airport?

Find which airlines fly direct from Missouri to Dulles Intl, which days they fly and book direct flights.

Nonstop departures

Missouri to Washington, D.C. Dulles Intl

Monday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Tuesday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Wednesday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Thursday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Friday

ANA, ASKY, Aer Lingus, +69 more

ANA, ASKY, +70 more

Saturday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Sunday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

See more direct flights

Nonstop returns

Washington, D.C. Dulles Intl to Missouri

Monday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Tuesday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Wednesday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Thursday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

Friday

ANA, ASKY, Aer Lingus, +69 more

ANA, ASKY, +70 more

Saturday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Sunday

ANA, ASKY, Aer Lingus, +68 more

ANA, ASKY, +69 more

See more direct flights
See more direct flights

Book cheap flights from Missouri to Washington, D.C.

Recent round-trip flight deals

7/1lun.
1 stopDelta
5h 34mSTL-IAD
7/5vie.
1 stopDelta
4h 05mIAD-STL
$188
7/3mié.
1 stopDelta
4h 42mSTL-IAD
7/10mié.
1 stopDelta
5h 22mIAD-STL
$198
8/17sáb.
1 stopAmerican Airlines
7h 14mSGF-IAD
8/24sáb.
1 stopAmerican Airlines
5h 41mIAD-SGF
$198
10/5sáb.
nonstopUnited Airlines
2h 09mSTL-IAD
10/9mié.
1 stopUnited Airlines
7h 23mIAD-STL
$199
8/17sáb.
1 stopAmerican Airlines
6h 00mSGF-IAD
8/24sáb.
2 stopsAmerican Airlines
9h 56mIAD-SGF
$203
6/29sáb.
1 stopUnited Airlines
6h 00mSTL-IAD
7/2mar.
1 stopUnited Airlines
4h 55mIAD-STL
$208
7/12vie.
1 stopSun Country Air
27h 12mSTL-IAD
7/15lun.
1 stopSun Country Air
25h 51mIAD-STL
$245
7/8lun.
1 stopSun Country Air
26h 57mSTL-IAD
7/15lun.
1 stopSun Country Air
25h 51mIAD-STL
$255
6/19mié.
3 stops
22h 11mSTL-IAD
6/22sáb.
1 stop
8h 21mIAD-STL
$303
6/24lun.
1 stop
15h 23mMCI-IAD
7/1lun.
3 stops
31h 41mIAD-MCI
$332

Search by stops

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Recent one-way flight deals

9/4mié.
1 stopUnited Airlines
5h 55mSTL-IAD
$90
7/4jue.
1 stopDelta
6h 57mSTL-IAD
$94
8/20mar.
1 stopAmerican Airlines
4h 48mSGF-IAD
$99
6/11mar.
3 stops
22h 23mSTL-IAD
$124
7/2mar.
3 stops
23h 47mSTL-IAD
$137
6/27jue.
1 stopAmerican Airlines
5h 21mSTL-IAD
$138
6/17lun.
1 stopSun Country Air
15h 43mMCI-IAD
$138
7/8lun.
1 stopSun Country Air
15h 27mMCI-IAD
$140
7/27sáb.
2 stopsQatar Airways
43h 20mSTL-IAD
$1,957
6/30dom.
2 stopsQatar Airways
35h 58mSTL-IAD
$14,005

Search by stops

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Last minute flights from Missouri to Dulles Intl

Last minute flight, train and bus deals

6/11mar.
multi-stop
22h 23mSTL-IAD
6/18mar.
multi-stop
27h 56mIAD-STL
$268
6/7vie.
multi-stopAmerican Airlines
6h 04mSGF-IAD
6/9dom.
multi-stopAmerican Airlines
6h 19mIAD-SGF
$338
6/11mar.
multi-stop
22h 23mSTL-IAD
6/17lun.
multi-stop
30h 58mIAD-STL
$339
6/8sáb.
multi-stopAmerican Airlines
8h 45mSGF-IAD
6/9dom.
multi-stopAmerican Airlines
6h 19mIAD-SGF
$343
6/11mar.
multi-stop
22h 23mSTL-IAD
6/18mar.
multi-stop
25h 10mIAD-STL
$364
6/10lun.
multi-stopSun Country Air
15h 27mMCI-IAD
6/13jue.
multi-stopSun Country Air
22h 57mIAD-MCI
$395
6/11mar.
multi-stopDelta
5h 34mSTL-IAD
6/18mar.
multi-stopDelta
7h 01mIAD-STL
$433
6/11mar.
multi-stopDelta
4h 02mSTL-IAD
6/15sáb.
multi-stopDelta
4h 02mIAD-STL
$498
6/8sáb.
multi-stopUnited Airlines
4h 36mSGF-IAD
6/12mié.
multi-stopUnited Airlines
14h 24mIAD-SGF
$533
6/11mar.
multi-stopUnited Airlines
6h 16mSTL-IAD
6/15sáb.
nonstopUnited Airlines
2h 12mIAD-STL
$563

Search by stops

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Search by price

Flights to Washington Dulles Airport