Popular in | April |
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Cheapest in | December |
Round-trip from | $234 |
One-way from | $169 |
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.
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.
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.
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.
Fly from
Fly to
Budget
$176 - $351
Route
Depart
Return
Price
Lambert-St LouisWashington, D.C. Dulles Intl
STL - IAD
STLIAD
Lambert-St Louis
Wed 8/7
1 stop6h 57m
Washington, D.C. Dulles Intl
Wed 8/28
1 stop5h 44m
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
Lambert-St LouisWashington, D.C. Dulles Intl
STL - IAD
STLIAD
Lambert-St Louis
Tue 8/20
1 stop4h 06m
Washington, D.C. Dulles Intl
Thu 9/5
1 stop4h 04m
Lambert-St LouisWashington, D.C. Dulles Intl
STL - IAD
STLIAD
Lambert-St Louis
Wed 7/10
1 stop5h 49m
Washington, D.C. Dulles Intl
Wed 7/17
1 stop5h 22m
Lambert-St LouisWashington, D.C. Dulles Intl
STL - IAD
STLIAD
Lambert-St Louis
Mon 7/1
1 stop6h 00m
Washington, D.C. Dulles Intl
Sat 7/6
Nonstop2h 07m
Lambert-St LouisWashington, D.C. Dulles Intl
STL - IAD
STLIAD
Lambert-St Louis
Sun 8/4
1 stop5h 15m
Washington, D.C. Dulles Intl
Sat 10/19
1 stop4h 02m
Lambert-St LouisWashington, D.C. Dulles Intl
STL - IAD
STLIAD
Lambert-St Louis
Sun 7/7
1 stop16h 00m
Washington, D.C. Dulles Intl
Sun 7/14
1 stop6h 22m
Lambert-St LouisWashington, D.C. Dulles Intl
STL - IAD
STLIAD
Lambert-St Louis
Sun 9/15
3 stops26h 23m
Washington, D.C. Dulles Intl
Fri 9/20
3 stops23h 45m
Lambert-St LouisWashington, D.C. Dulles Intl
STL - IAD
STLIAD
Lambert-St Louis
Mon 8/12
1 stop6h 50m
Washington, D.C. Dulles Intl
Thu 8/15
2 stops13h 10m
WAS Temperature | 35.6 - 80.6 °F |
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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).
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Boarding
Crew
Entertainment
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Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Food
Boarding
Crew
Entertainment
Comfort
Overall
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Delta | Cheapest$177 | Average$282 | FlexibilityNo cancel fee | On-timeN/A |
United Airlines | Cheapest$196 | Average$439 | FlexibilityNo cancel fee | On-time69% |
American Airlines | Cheapest$220 | Average$317 | FlexibilityNo cancel fee | On-time71% |
0%of flight departures | Early morningMidnight to 6 am |
---|---|
100%of flight departures | Morning6 am to noon |
0%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
Sunday | 5daily flights |
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Monday | 6daily flights |
Tuesday | 5daily flights |
Wednesday | 6daily flights |
Thursday | 5daily flights |
Friday | 6daily flights |
Saturday | 4daily flights |