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

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — STL
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Dulles Intl to Missouri

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Missouri (USMO). 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 December 18, 2024.

Round-trip from

$239
(United Airlines)

One-way from

$115
(United Airlines)
From Washington, D.C. Dulles Intl to Missouri
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One-way flight from Washington, D.C. Dulles Intl to Missouri
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Find flight deals from Dulles Intl to Missouri

Cheapest flights from Dulles Intl to Missouri
Explore the most affordable flight options available from Dulles Intl to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This American Airlines deal was found by Cheapflights users on 12/18. 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.
Wed 12/185:00 amIAD - SGF
1 stop7h 03mAmerican Airlines
Tue 12/248:38 amSGF - IAD
1 stop6h 46mAmerican Airlines
Deal found 12/18$369
This Delta deal was found by Cheapflights users on 12/18. 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 12/314:15 pmIAD - MCI
1 stop5h 55mDelta
Sat 1/46:15 amMCI - IAD
1 stop4h 35mDelta
Deal found 12/18$372
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/245:35 pmIAD - MCI
1 stop6h 53mUnited Airlines
Tue 1/219:55 amMCI - IAD
1 stop5h 18mUnited Airlines
Deal found 12/17$423
This Delta deal was found by Cheapflights users on 12/17. 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 12/2410:00 amIAD - STL
1 stop7h 12mDelta
Tue 1/215:00 pmSTL - IAD
1 stop6h 22mDelta
Deal found 12/17$428
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Mon 12/306:21 amIAD - MCI
1 stop7h 19mAmerican Airlines
Fri 1/36:22 amMCI - IAD
1 stop6h 01mAmerican Airlines
Deal found 12/16$436
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/245:15 pmIAD - SGF
2 stops22h 22mUnited Airlines
Tue 1/217:45 amSGF - IAD
1 stop7h 28mUnited Airlines
Deal found 12/16$438
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Mon 12/305:00 amIAD - STL
1 stop4h 50mAmerican Airlines
Thu 1/25:58 pmSTL - IAD
1 stop5h 04mAmerican Airlines
Deal found 12/16$443
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/298:30 amIAD - STL
Nonstop2h 24mUnited Airlines
Fri 1/38:25 amSTL - IAD
Nonstop2h 18mUnited Airlines
Deal found 12/17$444
This Delta deal was found by Cheapflights users on 12/17. 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 12/189:47 amIAD - SGF
1 stop7h 22mDelta
Tue 12/241:15 pmSGF - IAD
1 stop7h 25mDelta
Deal found 12/17$453
This Gotogate deal was found by Cheapflights users on 12/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/208:20 amIAD - STL
1 stop16h 20mFrontier
Mon 12/235:45 pmSTL - IAD
1 stop12h 30mFrontier
Deal found 12/18$603
This Mytrip deal was found by Cheapflights users on 12/18. 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 12/2312:45 pmIAD - STL
3 stops27h 36mMultiple Airlines
Mon 12/309:50 amSTL - IAD
3 stops22h 02mMultiple Airlines
Deal found 12/18$668
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Fri 12/207:54 pmIAD - MCI
1 stop13h 52mMultiple Airlines
Mon 12/237:30 pmMCI - IAD
3 stops39h 05mMultiple Airlines
Deal found 12/16$862

Find flights from Dulles Intl to Missouri within your budget

Customize your flight search to find flights from Dulles Intl to Missouri that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Wed 1/8

5:45 pm-11:30 pm

1 stop6h 45m

Lambert-St Louis

Fri 1/10

8:15 am-11:33 am

Nonstop2h 18m

$239

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Tue 1/14

5:16 pm-9:49 pm

1 stop5h 33m

Lambert-St Louis

Fri 1/17

5:50 pm-11:16 pm

1 stop4h 26m

$248

Washington, D.C.Springfield

IAD - SGF

IADSGF

Washington, D.C. Dulles Intl

Fri 1/10

5:00 am-11:10 am

1 stop7h 10m

Springfield-Branson

Wed 1/15

9:11 am-4:14 pm

1 stop6h 03m

$248

Washington, D.C.Springfield

IAD - SGF

IADSGF

Washington, D.C. Dulles Intl

Sun 1/5

6:00 am-10:51 am

1 stop5h 51m

Springfield-Branson

Sun 1/12

6:00 am-11:57 am

1 stop4h 57m

$253

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 2/28

6:03 pm-11:43 pm

1 stop6h 40m

Lambert-St Louis

Sun 3/2

5:20 pm-5:13 pm

1 stop22h 53m

$274

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 1/17

8:05 pm-11:46 pm

1 stop4h 41m

Lambert-St Louis

Mon 1/20

7:18 am-1:23 pm

1 stop5h 05m

$276

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

Mon 1/13

6:00 am-12:28 pm

1 stop7h 28m

Kansas City

Thu 1/16

6:15 am-11:51 am

1 stop4h 36m

$306

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

Mon 3/3

6:31 pm-11:10 pm

1 stop5h 39m

Kansas City

Wed 3/5

5:18 am-4:56 pm

2 stops10h 38m

$311

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

Tue 1/14

5:36 pm-9:50 pm

1 stop5h 14m

Kansas City

Tue 1/21

12:45 pm-4:16 pm

Nonstop2h 31m

$322

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

Mon 1/6

5:45 pm-11:20 pm

1 stop6h 35m

Kansas City

Tue 1/7

3:35 pm-11:05 pm

1 stop6h 30m

$383

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

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

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

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

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Missouri (average of $311). Flying from Washington, D.C. Dulles Intl Airport to Missouri in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to MO?

Find hourly flight availability from Dulles Intl to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

When flying from Washington, D.C. Dulles Intl Airport to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Missouri by month

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

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

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

If weather is an important factor for your trip to Missouri, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated December 18, 2024.
Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Washington, D.C. to Missouri to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

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
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

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
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

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
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

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
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

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
4,848 reviews

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Overall

8.1

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 Dulles Intl to Missouri. 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 Washington, D.C. Dulles Intl Airport to Missouri one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $115. Users have also found prices from $122 and $123 on Delta and Frontier, respectively.

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

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

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Missouri consider choosing Copa Airlines (89%), GoJet (88%) or Avianca (88%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for $156. While the most popular route (Washington, D.C. Dulles Intl - Lambert-St Louis) can be booked for $188 on average our data indicates $340 when flying from Washington, D.C. Dulles Intl Airport to Missouri.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Missouri 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 Washington, D.C. Dulles Intl Airport to Missouri?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Missouri (average of $311). Flying from Washington, D.C. Dulles Intl Airport to Missouri in March is currently the most expensive (average of $356). 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.

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Alternative routes for Dulles Intl to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Dulles Intl to Missouri

Discover the top 3 airlines that operate flights from Dulles Intl to Missouri. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$192Average$374FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$214Average$396FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$262Average$496FlexibilityNo cancel feeOn-time69%
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