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$89+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — STL
mar. 30 — abr. 61
dom. 3/30
dom. 4/6
1 adult, Economy
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Cheap flight deals from Dulles Intl to Missouri

Keep the following information in mind while searching for Dulles Intl to Missouri flight deals. Data was last updated marzo 25, 2025.

Round-trip from

$217
(Delta)

One-way from

$89
(United Airlines)

Good round-trip deal

$373 or less

Good one-way deal

$149 or less
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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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Missouri.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Missouri.
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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 marzo 25, 2025.

This Delta deal was found by Cheapflights users on 3/24. 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.
mar. 4/226:00 amIAD - STL
1 stop4h 28mDelta
vie. 4/255:32 pmSTL - IAD
1 stop5h 56mDelta
Deal found 3/24$217
This United Airlines deal was found by Cheapflights users on 3/23. 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.
jue. 8/218:20 amIAD - STL
Nonstop2h 28mUnited Airlines
sáb. 8/238:25 amSTL - IAD
Nonstop2h 06mUnited Airlines
Deal found 3/23$229
This CheapOair deal was found by Cheapflights users on 3/24. 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.
mar. 4/18:30 amIAD - STL
1 stop16h 16mFrontier
mié. 4/94:57 pmSTL - IAD
1 stop16h 58mFrontier
Deal found 3/24$242
This Frontier deal was found by Cheapflights users on 3/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/285:15 amIAD - MCI
1 stop9h 22mFrontier
vie. 5/302:32 pmMCI - IAD
1 stop8h 29mFrontier
Deal found 3/24$258
This American Airlines deal was found by Cheapflights users on 3/23. 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.
vie. 7/46:55 amIAD - STL
1 stop6h 04mAmerican Airlines
sáb. 7/57:30 amSTL - IAD
1 stop4h 19mAmerican Airlines
Deal found 3/23$269
This Sun Country Air deal was found by Cheapflights users on 3/24. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/2412:37 pmIAD - MCI
1 stop23h 00mSun Country Air
dom. 4/2710:25 amMCI - IAD
1 stop23h 12mSun Country Air
Deal found 3/24$275
This United Airlines deal was found by Cheapflights users on 3/23. 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.
mar. 5/271:20 pmIAD - MCI
Nonstop2h 44mUnited Airlines
vie. 5/305:45 pmMCI - IAD
Nonstop2h 35mUnited Airlines
Deal found 3/23$277
This American Airlines deal was found by Cheapflights users on 3/23. 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.
sáb. 5/248:06 pmIAD - MCI
1 stop4h 53mAmerican Airlines
sáb. 5/316:33 pmMCI - IAD
1 stop4h 29mAmerican Airlines
Deal found 3/23$295
This Delta deal was found by Cheapflights users on 3/24. 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.
mié. 4/306:00 amIAD - MCI
1 stop6h 33mDelta
mié. 4/306:45 pmMCI - IAD
1 stop4h 40mDelta
Deal found 3/24$299
This American Airlines deal was found by Cheapflights users on 3/24. 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.
sáb. 4/265:00 amIAD - SGF
1 stop7h 29mAmerican Airlines
sáb. 5/34:26 pmSGF - IAD
1 stop5h 16mAmerican Airlines
Deal found 3/24$357
This United Airlines deal was found by Cheapflights users on 3/24. 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.
jue. 5/85:10 pmIAD - SGF
1 stop5h 51mUnited Airlines
sáb. 5/108:00 amSGF - IAD
1 stop5h 10mUnited Airlines
Deal found 3/24$402
This Mytrip deal was found by Cheapflights users on 3/24. 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.
jue. 4/245:40 pmIAD - MCI
3 stops23h 24mMultiple Airlines
lun. 4/284:23 pmMCI - IAD
3 stops18h 03mMultiple Airlines
Deal found 3/24$404

Cheapflights Fare Finder

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 marzo 25, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Missouri that are best for you.

Fly from

Dulles Intl

Fly to

Missouri

Route

Depart

Return

Price

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

mar. 4/22

6:00 am-9:28 am

1 stop4h 28m

Lambert-St Louis

vie. 4/25

5:32 pm-12:28 am

1 stop5h 56m

$217

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

jue. 8/21

8:20 am-9:48 am

Nonstop2h 28m

Lambert-St Louis

sáb. 8/23

8:25 am-11:31 am

Nonstop2h 06m

$229

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

vie. 4/4

5:55 pm-11:46 pm

1 stop6h 51m

Lambert-St Louis

mar. 4/8

4:57 pm-5:02 pm

1 stop23h 05m

$251

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

mié. 5/28

5:15 am-1:37 pm

1 stop9h 22m

Kansas City

vie. 5/30

2:32 pm-12:01 am

1 stop8h 29m

$258

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

vie. 7/4

6:55 am-11:59 am

1 stop6h 04m

Lambert-St Louis

sáb. 7/5

7:30 am-12:49 pm

1 stop4h 19m

$269

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

jue. 4/24

12:37 pm-10:37 am

1 stop23h 00m

Kansas City

dom. 4/27

10:25 am-10:37 am

1 stop23h 12m

$275

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

mar. 5/27

1:20 pm-3:04 pm

Nonstop2h 44m

Kansas City

vie. 5/30

5:45 pm-9:20 pm

Nonstop2h 35m

$277

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

sáb. 5/24

6:17 am-11:58 am

1 stop6h 41m

Kansas City

sáb. 5/31

6:33 pm-12:02 am

1 stop4h 29m

$295

Washington, D.C.Kansas City

IAD - MCI

IADMCI

Washington, D.C. Dulles Intl

mié. 4/30

6:00 am-11:33 am

1 stop6h 33m

Kansas City

mié. 4/30

6:45 pm-12:25 am

1 stop4h 40m

$299

Washington, D.C.Springfield

IAD - SGF

IADSGF

Washington, D.C. Dulles Intl

sáb. 4/26

2:12 pm-6:08 pm

1 stop4h 56m

Springfield-Branson

sáb. 5/3

7:11 am-4:23 pm

1 stop8h 12m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 38 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Missouri

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 marzo 25, 2025.

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.

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

Explore weekly flight availability from Dulles Intl to Missouri. 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 marzo 25, 2025.

The most flights from IAD to USMO are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

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 marzo 25, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta 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.
Alaska Airlines
8.0
Very good
9,785 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,785 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 $89. Users have also found prices from $104 and $119 on Southwest and Delta, 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 GoJet (84%), Avianca (84%) or Copa Airlines (84%) 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 $88. While the most popular route (Washington, D.C. Dulles Intl - Lambert-St Louis) can be booked for $187 on average our data indicates $384 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.
Dulles Intl to Dallas/Fort Worth flights
Baltimore to Dallas/Fort Worth flights
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Reagan-National to Miami flights
Reagan-National to Los Angeles flights
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Dulles Intl to Seattle flights
Baltimore to Fort Lauderdale flights
Reagan-National to Las Vegas flights
Dulles Intl to Los Angeles flights
Reagan-National to Dallas/Fort Worth flights
Reagan-National to Seattle flights
Dulles Intl to O'Hare Intl flights
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Baltimore to Miami flights
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Dulles Intl to Hobby flights
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Reagan-National to O'Hare Intl flights
Dulles Intl to Denver flights
Dulles Intl to Tampa flights
Baltimore to Orlando flights
Reagan-National to San Francisco flights
Reagan-National to Orlando flights
Dulles Intl to San Francisco flights
Dulles Intl to George Bush Intcntl flights
Baltimore to Los Angeles flights
Dulles Intl to Sky Harbor Intl flights
Dulles Intl to New Orleans flights
Reagan-National to Boston flights
Reagan-National to Denver flights
Baltimore to San Francisco flights
Dulles Intl to Boston flights
Baltimore to Denver flights
Baltimore to Atlanta flights
Reagan-National to Hobby flights
Dulles Intl to Austin flights
Baltimore to George Bush Intcntl flights
Reagan-National to Atlanta flights
Baltimore to Boston flights
Reagan-National to Sky Harbor Intl flights
Dulles Intl to Charleston flights
Dulles Intl to Midway flights
Dulles Intl to Nashville flights
Reagan-National to Nashville flights
Reagan-National to San Diego flights

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 marzo 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$195Average$397FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$245Average$387FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$271Average$491FlexibilityNo cancel feeOn-time69%
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