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Cheap flights from St. Louis (STL) to Dulles Intl (IAD) from $90

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 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.
STL — IAD
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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The best prices from Lambert-St Louis to Washington, D.C. Dulles Intl are usually found in December or March, booked 52 days in advance, depart on a Saturday or Tuesday and return on a Wednesday

Cheap flight deals from St. Louis to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 June 6, 2024.

Popular in

April

Cheapest in

December

Round-trip from

$234

One-way from

$133
High demand for flights, 18% potential price rise
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Best time to find cheap flights, 14% potential price drop
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From Lambert-St Louis to Washington, D.C. Dulles Intl
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One-way flight from Lambert-St Louis to Washington, D.C. Dulles Intl
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What is the cheapest day to fly round-trip from St. Louis to Washington, D.C. Dulles Intl Airport?

Flights from St. Louis to Washington, D.C. Dulles Intl Airport are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Dulles Intl Airport.

How far in advance should I book a flight from St. Louis to Washington, D.C. Dulles Intl Airport?

To save on the cost of your flight from St. Louis to Washington, D.C. Dulles Intl Airport, book at least 53 days before your planned departure. Booking around this time can save you about 108% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $327 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $466.

What is the cheapest month to fly from St. Louis to Washington, D.C. Dulles Intl Airport?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from St. Louis in January are about $276 on average during January, but can be found for as low as $108.

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

It’s optimal to fly from St. Louis to Washington, D.C. Dulles Intl Airport in the evening. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight at noon.

Cheap St. Louis to Dulles Intl flights in June & July 2024

Find cheap flight options from St. Louis to Dulles Intl specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Washington, D.C. in June and July 2024. More deals are always being added, so be sure to check back regularly.
Mon 7/14:02 pmSTL - IAD
1 stop6h 57mDelta
Fri 7/56:10 amIAD - STL
1 stop4h 05mDelta
Deal found 6/6$188
Wed 7/310:15 amSTL - IAD
1 stop4h 42mDelta
Wed 7/107:16 amIAD - STL
1 stop5h 22mDelta
Deal found 6/5$198
Sat 6/295:30 pmSTL - IAD
1 stop6h 00mUnited Airlines
Tue 7/26:30 amIAD - STL
1 stop4h 55mUnited Airlines
Deal found 6/4$208
Tue 7/28:25 amSTL - IAD
Nonstop2h 10mUnited Airlines
Fri 7/55:23 pmIAD - STL
1 stop6h 08mUnited Airlines
Deal found 6/6$209
Sat 6/295:30 pmSTL - IAD
1 stop6h 00mUnited Airlines
Tue 7/25:55 pmIAD - STL
Nonstop2h 19mUnited Airlines
Deal found 6/6$224
Fri 7/126:30 amSTL - IAD
1 stop3h 54mDelta
Sat 7/137:11 pmIAD - STL
1 stop5h 28mDelta
Deal found 6/5$228
Tue 7/28:25 amSTL - IAD
Nonstop2h 10mUnited Airlines
Sat 7/65:25 pmIAD - STL
1 stop5h 23mUnited Airlines
Deal found 6/6$229
Thu 7/44:02 pmSTL - IAD
1 stop6h 57mDelta
Mon 7/87:11 pmIAD - STL
1 stop5h 28mDelta
Deal found 6/6$233
Sat 6/295:30 pmSTL - IAD
1 stop6h 00mUnited Airlines
Tue 7/25:55 pmIAD - STL
Nonstop2h 19mUnited Airlines
Deal found 6/4$234

St. Louis to Dulles Intl 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Dulles Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
The lowest fares we've come across on flights traveling from St. Louis to Washington, D.C. in June and July 2024. More deals are always being added, so be sure to check back regularly.
Mon 7/15:25 pmSTL - IAD
1 stop5h 34mDelta
Fri 7/56:10 amIAD - STL
1 stop4h 05mDelta
Deal found 6/5$188
Wed 7/310:15 amSTL - IAD
1 stop4h 42mDelta
Wed 7/107:16 amIAD - STL
1 stop5h 22mDelta
Deal found 6/5$198
Sat 10/58:25 amSTL - IAD
Nonstop2h 09mUnited Airlines
Wed 10/98:25 amIAD - STL
1 stop7h 23mUnited Airlines
Deal found 6/5$199
Sat 6/295:30 pmSTL - IAD
1 stop6h 00mUnited Airlines
Tue 7/26:30 amIAD - STL
1 stop4h 55mUnited Airlines
Deal found 6/4$208
Tue 7/28:25 amSTL - IAD
Nonstop2h 10mUnited Airlines
Fri 7/55:23 pmIAD - STL
1 stop6h 08mUnited Airlines
Deal found 6/6$209
Wed 8/211:15 pmSTL - IAD
Nonstop2h 08mUnited Airlines
Sun 8/258:35 amIAD - STL
Nonstop2h 21mUnited Airlines
Deal found 6/6$213
Wed 8/215:20 pmSTL - IAD
1 stop5h 55mUnited Airlines
Sun 8/256:30 amIAD - STL
1 stop4h 40mUnited Airlines
Deal found 6/6$214
Tue 8/275:27 pmSTL - IAD
1 stop4h 36mDelta
Tue 9/31:36 pmIAD - STL
1 stop7h 27mDelta
Deal found 6/5$218
Sat 6/295:30 pmSTL - IAD
1 stop6h 00mUnited Airlines
Tue 7/25:55 pmIAD - STL
Nonstop2h 19mUnited Airlines
Deal found 6/6$224

St. Louis to Dulles Intl flights leaving soon

Find last-minute flight options from St. Louis to Dulles Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Consider one of these great deals we found on last-minute flights from St. Louis to Washington, D.C.. Users should be sure to double check the price, date, and time of their last-minute flight.
Tue 6/1111:57 amSTL - IAD
3 stops22h 23mMultiple Airlines
Tue 6/186:10 pmIAD - STL
1 stop27h 56mMultiple Airlines
Deal found 6/4$268
Wed 6/195:38 pmSTL - IAD
1 stop5h 21mAmerican Airlines
Wed 6/265:00 amIAD - STL
1 stop4h 33mAmerican Airlines
Deal found 6/5$271
Wed 6/1912:15 pmSTL - IAD
3 stops22h 11mMultiple Airlines
Sat 6/2212:40 pmIAD - STL
1 stop8h 21mMultiple Airlines
Deal found 6/5$303
Wed 6/195:38 pmSTL - IAD
1 stop5h 21mAmerican Airlines
Sat 6/225:00 amIAD - STL
1 stop4h 32mAmerican Airlines
Deal found 6/5$308
Tue 6/187:30 pmSTL - IAD
1 stop13h 56mSun Country Air
Fri 6/217:50 pmIAD - STL
1 stop25h 11mSun Country Air
Deal found 6/6$335
Wed 6/191:55 pmSTL - IAD
2 stops20h 31mMultiple Airlines
Sat 6/2212:40 pmIAD - STL
1 stop8h 21mMultiple Airlines
Deal found 6/5$337
Tue 6/1111:57 amSTL - IAD
3 stops22h 23mMultiple Airlines
Mon 6/178:25 amIAD - STL
3 stops30h 58mMultiple Airlines
Deal found 6/4$339
Tue 6/187:30 pmSTL - IAD
1 stop13h 56mMultiple Airlines
Wed 6/195:35 pmIAD - STL
3 stops26h 47mMultiple Airlines
Deal found 6/5$340
Wed 6/194:02 pmSTL - IAD
1 stop4h 44mDelta
Fri 6/216:10 amIAD - STL
1 stop4h 05mDelta
Deal found 6/5$347

One-way flights to Dulles Intl from St. Louis

Search for one-way flight options from St. Louis to Dulles Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
If you're seeking multiple options on one-way flights from St. Louis to Washington, D.C., be sure to check out these deals, which are updated often. Users needing a return flight from St. Louis to Washington, D.C. should utilize the search form above.
Wed 9/45:20 pmSTL - IAD
1 stop5h 55mUnited Airlines
Deal found 6/4$90
Tue 7/24:02 pmSTL - IAD
1 stop6h 57mDelta
Deal found 6/5$94
Wed 6/268:25 amSTL - IAD
Nonstop2h 10mUnited Airlines
Deal found 6/5$95
Tue 7/95:30 pmSTL - IAD
1 stop6h 00mUnited Airlines
Deal found 6/6$104
Sat 7/273:49 pmSTL - IAD
1 stop4h 51mDelta
Deal found 6/5$114
Wed 9/48:25 amSTL - IAD
Nonstop2h 08mUnited Airlines
Deal found 6/5$120
Tue 6/1111:57 amSTL - IAD
3 stops22h 23mMultiple Airlines
Deal found 6/4$124
Wed 6/194:02 pmSTL - IAD
1 stop6h 57mDelta
Deal found 6/5$133
Tue 7/28:25 amSTL - IAD
Nonstop2h 10mUnited Airlines
Deal found 6/5$136

Find flights from St. Louis to Dulles Intl within your budget

Customize your flight search to find flights from St. Louis 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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$188 - $303

Route

Depart

Return

Price

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Mon 7/1

1 stop5h 34m

Washington, D.C. Dulles Intl

Fri 7/5

1 stop4h 05m

$188

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Wed 7/3

1 stop4h 42m

Washington, D.C. Dulles Intl

Wed 7/10

1 stop5h 22m

$198

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Sat 10/5

Nonstop2h 09m

Washington, D.C. Dulles Intl

Wed 10/9

1 stop7h 23m

$199

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Sat 6/29

1 stop6h 00m

Washington, D.C. Dulles Intl

Tue 7/2

1 stop4h 55m

$208

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Wed 8/21

Nonstop2h 08m

Washington, D.C. Dulles Intl

Sun 8/25

1 stop4h 01m

$209

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Tue 8/27

1 stop4h 36m

Washington, D.C. Dulles Intl

Tue 9/3

1 stop7h 27m

$218

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Fri 7/12

1 stop27h 12m

Washington, D.C. Dulles Intl

Mon 7/15

1 stop25h 51m

$245

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Wed 6/19

1 stop5h 21m

Washington, D.C. Dulles Intl

Wed 6/26

1 stop4h 33m

$271

Lambert-St LouisWashington, D.C. Dulles Intl

STL - IAD

STLIAD

Lambert-St Louis

Wed 6/19

3 stops22h 11m

Washington, D.C. Dulles Intl

Sat 6/22

1 stop8h 21m

$303

Flights are sorted by cheapest first

Deals found on 6/5

How far ahead should I book a flight from St. Louis to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Dulles Intl. Price data was last updated on May 31, 2024.
The best time to book flights from St. Louis to Washington, D.C. Dulles Intl Airport is 51 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

What is the cheapest day to fly from St. Louis to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Dulles Intl. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Washington, D.C. Dulles Intl Airport flight should consider departing on Saturday afternoons when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from St. Louis 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.

Temperature and rainfall in Dulles Intl by month

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

WAS

Temperature

35.6 - 80.6 °F

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 June 6, 2024.
To help decide which airline to fly from St. Louis to Washington, D.C., see what other customers have to say about United Airlines, American Airlines and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Qatar Airways
7.7
Good
4,312 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,696 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,227 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Sun Country Air
7.2
Good
593 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

Food

7.4

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from St. Louis 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 airport do you fly from for flights from St. Louis to Washington, D.C. Dulles Intl?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Washington, D.C. Dulles Intl. On average, Lambert-St Louis has 5 outbound flights to Washington, D.C. Dulles Intl per day from 3 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • Can I find flights from St. Louis to Washington, D.C. Dulles Intl Airport for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Washington, D.C. Dulles Intl Airport for under $200. The cheapest flight booked recently is on Delta for just $188, but on average you can expect to pay $226.

  • Are there nonstop flights from St. Louis to Washington, D.C. Dulles Intl Airport for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to Washington, D.C. Dulles Intl Airport under $300. A good price for a nonstop flight from St. Louis to Washington, D.C. Dulles Intl Airport is less than $327.

  • Are there last-minute flights available from St. Louis to Washington, D.C. Dulles Intl Airport for under $300?

    There are currently 20+ open flights from St. Louis to Washington, D.C. Dulles Intl Airport within the next 7 days for less than $300.

  • What are the cheapest airlines flying from St. Louis to Washington, D.C. Dulles Intl Airport round-trip?

    Currently priced at $188, Delta will fly you from St. Louis to Washington, D.C. Dulles Intl Airport and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Sun Country Air - these airlines can fly you to your destination from $199 and $245, respectively. Delta is 50% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $90. Delta flights start at $94 while deals on American Airlines start at $138 one-way.

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

    No one likes to see their flight delayed. When booking a flight from St. Louis to Washington, D.C. Dulles Intl Airport consider choosing Avianca (95%), Copa Airlines (95%) or Scandinavian Airlines (93%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $1,103 for a flight from St. Louis to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $135 while the most popular route, (Lambert-St Louis - Washington, D.C. Dulles Intl) is currently priced at $188.

  • What does STL to IAD mean?

    This is defined as Lambert-St Louis Airport (STL) and Washington, D.C. Dulles Intl Airport (IAD). Codes like Washington, D.C. Dulles Intl Airport are often used to just call airports uniquely.

  • Can I find deals for flights from St. Louis to Dulles Intl that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Dulles Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Dulles Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Dulles Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from St. Louis to Dulles Intl?

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

  • Can I find deals for business class flights from St. Louis to Dulles Intl?

    Yes. Cheapflights offers flight deals from St. Louis 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.

  • Can I find deals for flights from St. Louis to Dulles Intl that allow pets onboard?

    Many airlines flying from St. Louis to Dulles Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Dulles Intl?

    Yes, you can often find last-minute deals on St. Louis to Dulles Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Washington, D.C. Dulles Intl Airport flight deals updated?

    The St. Louis to Washington, D.C. Dulles Intl Airport flight deals you see on this page were last updated on 6/6.

  • What are the most popular airlines that fly from St. Louis to Washington, D.C. Dulles Intl Airport?

    American Airlines, Delta and United Airlines are the most popular airlines when flying from St. Louis to Washington, D.C. Dulles Intl Airport.

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Washington, D.C. Dulles Intl Airport (average of $278). Flying from St. Louis to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $382). 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

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Alternative routes for St. Louis to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Reagan-National flights
St. Louis to Reagan-National flights
Kansas City to Dulles Intl flights
Kansas City to Baltimore flights
St. Louis to Baltimore flights
Springfield to Baltimore flights
Springfield to Dulles Intl flights
Springfield to Reagan-National flights
Joplin to Dulles Intl flights
Joplin to Reagan-National flights
Joplin to Baltimore flights
Columbia to Dulles Intl flights
Columbia to Reagan-National flights
Columbia to Baltimore flights
Fort Leonard Wood to Baltimore flights
Fort Leonard Wood to Reagan-National flights

Top 3 airlines flying from St. Louis to Dulles Intl

Discover the top 3 airlines that operate flights from St. Louis 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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$177Average$282FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$195Average$439FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$220Average$317FlexibilityNo cancel feeOn-time71%
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Search flights from St. Louis to Dulles Intl by cabin class

Find flights from St. Louis to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from St. Louis to Dulles Intl

Find hourly flight availability from St. Louis 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 June 6, 2024.
0%of flight departuresEarly morningMidnight to 6 am
80%of flight departuresMorning6 am to noon
20%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to Dulles Intl

Explore weekly flight availability from St. Louis 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 June 6, 2024.
Sunday5daily flights
Monday6daily flights
Tuesday5daily flights
Wednesday6daily flights
Thursday5daily flights
Friday6daily flights
Saturday4daily flights

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