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Dulles Intl

$115+ Cheap flights from Missouri to Dulles Intl (IAD)

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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IAD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Missouri to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Missouri (USMO) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$199
(American Airlines)

One-way from

$115
(United Airlines)

Good round-trip deal

$556 or less

Good one-way deal

$237 or less
From Missouri to Washington, D.C. Dulles Intl
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One-way flight from Missouri to Washington, D.C. Dulles Intl
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Price to beat on a round-trip flight from Missouri to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Missouri to Washington, D.C. Dulles Intl.
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Find flight deals from Missouri to Dulles Intl

Cheapest flights from Missouri to Dulles Intl
Explore the most affordable flight options available from Missouri to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” 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 2/184:32 pmSGF - IAD
1 stop6h 21mAmerican Airlines
Tue 2/256:30 amIAD - SGF
1 stop5h 22mAmerican Airlines
Deal found 1/21$199
This Booking.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/215:20 pmSTL - IAD
1 stop22h 53mFrontier
Mon 2/246:03 pmIAD - STL
1 stop6h 40mFrontier
Deal found 1/20$230
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” 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 2/1510:59 amSTL - IAD
1 stop4h 39mDelta
Sun 2/236:00 amIAD - STL
1 stop4h 20mDelta
Deal found 1/20$233
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” 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 3/48:25 amSTL - IAD
Nonstop2h 09mUnited Airlines
Fri 3/78:20 amIAD - STL
1 stop4h 52mUnited Airlines
Deal found 1/20$239
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” 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 1/297:45 amSGF - IAD
1 stop7h 28mUnited Airlines
Tue 2/258:30 amIAD - SGF
1 stop7h 04mUnited Airlines
Deal found 1/21$259
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” 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 2/1512:49 pmSTL - IAD
1 stop4h 12mAmerican Airlines
Mon 2/176:31 pmIAD - STL
1 stop6h 25mAmerican Airlines
Deal found 1/20$283
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” 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 2/47:45 amJLN - IAD
1 stop7h 28mUnited Airlines
Sat 2/85:36 pmIAD - JLN
1 stop7h 18mUnited Airlines
Deal found 1/19$284
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” 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 2/158:05 amMCI - IAD
Nonstop2h 26mUnited Airlines
Sat 2/225:25 pmIAD - MCI
1 stop5h 22mUnited Airlines
Deal found 1/19$289
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” 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 2/136:05 amSGF - IAD
1 stop4h 52mDelta
Sun 2/165:00 pmIAD - SGF
1 stop6h 22mDelta
Deal found 1/20$299
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” 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 2/156:15 amMCI - IAD
1 stop4h 33mDelta
Sat 2/155:35 pmIAD - MCI
1 stop7h 19mDelta
Deal found 1/21$299
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” 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 2/186:37 pmMCI - IAD
1 stop4h 16mAmerican Airlines
Wed 2/261:48 pmIAD - MCI
2 stops9h 01mAmerican Airlines
Deal found 1/20$315
This Southwest deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” 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 3/76:20 amMCI - IAD
1 stop9h 25mSouthwest
Sat 3/154:00 pmIAD - MCI
1 stop9h 55mSouthwest
Deal found 1/20$369

Find flights from Missouri to Dulles Intl within your budget

Customize your flight search to find flights from Missouri to Dulles Intl 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SpringfieldWashington, D.C.

SGF - IAD

SGFIAD

Springfield-Branson

Tue 2/18

4:32 pm-11:53 pm

1 stop6h 21m

Washington, D.C. Dulles Intl

Tue 2/25

6:30 am-10:52 am

1 stop5h 22m

$199

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Fri 2/21

5:20 pm-5:13 pm

1 stop22h 53m

Washington, D.C. Dulles Intl

Mon 2/24

6:03 pm-11:43 pm

1 stop6h 40m

$230

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Sat 2/15

10:59 am-4:38 pm

1 stop4h 39m

Washington, D.C. Dulles Intl

Sun 2/23

6:00 am-9:20 am

1 stop4h 20m

$233

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Tue 3/4

8:25 am-11:34 am

Nonstop2h 09m

Washington, D.C. Dulles Intl

Fri 3/7

8:20 am-12:12 pm

1 stop4h 52m

$239

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Sat 2/15

12:49 pm-6:01 pm

1 stop4h 12m

Washington, D.C. Dulles Intl

Mon 2/17

6:31 pm-11:56 pm

1 stop6h 25m

$283

JoplinWashington, D.C.

JLN - IAD

JLNIAD

Joplin

Tue 2/4

7:45 am-4:13 pm

1 stop7h 28m

Washington, D.C. Dulles Intl

Sat 2/8

5:36 pm-11:54 pm

1 stop7h 18m

$284

Kansas CityWashington, D.C.

MCI - IAD

MCIIAD

Kansas City

Sat 2/15

8:05 am-11:31 am

Nonstop2h 26m

Washington, D.C. Dulles Intl

Sat 2/22

5:25 pm-9:47 pm

1 stop5h 22m

$289

SpringfieldWashington, D.C.

SGF - IAD

SGFIAD

Springfield-Branson

Sat 2/15

3:20 pm-9:09 pm

1 stop4h 49m

Washington, D.C. Dulles Intl

Sun 2/16

8:30 am-2:34 pm

1 stop7h 04m

$294

SpringfieldWashington, D.C.

SGF - IAD

SGFIAD

Springfield-Branson

Thu 2/13

6:05 am-11:57 am

1 stop4h 52m

Washington, D.C. Dulles Intl

Sun 2/16

5:00 pm-10:22 pm

1 stop6h 22m

$299

Kansas CityWashington, D.C.

MCI - IAD

MCIIAD

Kansas City

Sat 2/15

6:15 am-11:48 am

1 stop4h 33m

Washington, D.C. Dulles Intl

Sat 2/15

5:35 pm-11:54 pm

1 stop7h 19m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 29 results
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Best time to book a flight from Missouri to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Missouri with our price prediction graph.
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.

Travel insights for flights from Missouri to Dulles Intl

Get recent, data-driven insights about flights from Missouri to Dulles Intl including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Missouri to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Missouri to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Missouri to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 IAD?

Find hourly flight availability from Missouri to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Washington, D.C. Dulles Intl Airport as you normally would.

Weekly flight availability from Missouri to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Missouri to Dulles Intl. 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 January 21, 2025.

The most flights from USMO to IAD are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated January 21, 2025.
Get a feel of what it's like to fly with American Airlines, United Airlines and Delta from Missouri to Washington, D.C. by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Missouri to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Missouri to Washington, D.C. Dulles Intl Airport are United Airlines ($115), Delta ($125), and Frontier ($140).

  • What are the most popular routes from Missouri to Washington, D.C. Dulles Intl Airport?

    When deciding which route to take from Missouri to Washington, D.C. Dulles Intl Airport consider Lambert-St Louis - Washington, D.C. Dulles Intl, Kansas City - Washington, D.C. Dulles Intl or Springfield-Branson - Washington, D.C. Dulles Intl as they are the most popular.

  • What are the most reliable airlines from Missouri to Washington, D.C. Dulles Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Missouri to Washington, D.C. Dulles Intl Airport on time: Avianca (80%), Copa Airlines (80%), GoJet (75%).

  • What are the cheapest flights from Missouri to Washington, D.C. Dulles Intl Airport?

    On average you can expect to pay $776 for a flight from Missouri to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $114 while the most popular route, (Lambert-St Louis - Washington, D.C. Dulles Intl) is currently priced at $164.

  • Can I find deals for flights from Missouri to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Missouri to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Dulles Intl.

  • Can I find deals for business class flights from Missouri to Dulles Intl?

    Yes. Cheapflights offers flight deals from Missouri to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Missouri to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Missouri to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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.

See more FAQs

Traveling to a place near Missouri?

Book flights to Missouri if you plan to visit one of these locations
Fairfax
Arlington
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Greenbelt
Sterling
Easton
Oxon Hill
Herndon
Woodbridge
Bowie
Reston

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Alternative routes for Missouri to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
Los Angeles to Reagan-National flights
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Los Angeles to Baltimore flights
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Los Angeles to Dulles Intl flights
Atlanta to Dulles Intl flights
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Miami to Reagan-National flights
O'Hare Intl to Baltimore flights
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Boston to Reagan-National flights
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San Francisco to Dulles Intl flights
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Boston to Baltimore flights
Tampa to Dulles Intl flights
Denver to Baltimore flights
Orlando to Baltimore flights
Miami to Dulles Intl flights
Orlando to Reagan-National flights
San Francisco to Baltimore flights
Denver to Reagan-National flights
Minneapolis to Baltimore flights
George Bush Intcntl to Reagan-National flights
Minneapolis to Dulles Intl flights
Minneapolis to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
George Bush Intcntl to Baltimore flights
Newark to Reagan-National flights
Atlanta to Baltimore flights
Fort Lauderdale to Baltimore flights
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Seattle to Baltimore flights
Tampa to Reagan-National flights
Austin to Dulles Intl flights
Miami to Baltimore flights
Fort Lauderdale to Dulles Intl flights
Detroit to Dulles Intl flights
Fort Lauderdale to Reagan-National flights
Charlotte to Dulles Intl flights

Top 3 airlines flying from Missouri to Dulles Intl

Discover the top 3 airlines that operate flights from Missouri to Dulles Intl. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$129Average$341FlexibilityNo cancel feeOn-time71%
DeltaCheapest$177Average$316FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$211Average$437FlexibilityNo cancel feeOn-time69%
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