Popular in | February |
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Cheapest in | December |
Round-trip from | $319 |
One-way from | $198 |
Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 27% on your flight compared to booking on days when demand is much higher.
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 45 days in advance, which can save you up to 147% on flights from Washington, D.C. Dulles Intl Airport to St. Louis compared to booking the week you need them. Waiting 45 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $408. For sooner than that we have options available in the next 3 days from $470.
The best pricing can be found in the month of January. Prices to St. Louis from Washington, D.C. Dulles Intl Airport average $329. You can even find prices in January for less than $329, as users have found deals to St. Louis from as low as $130. The month of May appears to be one of the more expensive times to travel to St. Louis from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 17%.
It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to St. Louis in the morning. Doing so could potentially save you 15% on the flight price compared to flying in the evening, which is usually more expensive.
Fly from
Fly to
Budget
$188 - $299
Route
Depart
Return
Price
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Mon 7/1
1 stop7h 00m
Lambert-St Louis
Thu 7/4
1 stop4h 46m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Wed 6/26
1 stop4h 05m
Lambert-St Louis
Tue 7/2
1 stop5h 01m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Wed 7/24
1 stop4h 04m
Lambert-St Louis
Wed 7/31
1 stop7h 09m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Mon 8/26
Nonstop2h 21m
Lambert-St Louis
Wed 8/28
1 stop5h 28m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Thu 8/29
1 stop4h 37m
Lambert-St Louis
Sat 8/31
1 stop5h 55m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Wed 6/26
1 stop6h 50m
Lambert-St Louis
Wed 7/3
Nonstop2h 10m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Mon 8/26
3 stops25h 42m
Lambert-St Louis
Wed 8/28
3 stops22h 39m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Sun 7/7
1 stop10h 52m
Lambert-St Louis
Sun 7/14
1 stop14h 49m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Wed 6/19
1 stop4h 33m
Lambert-St Louis
Mon 6/24
1 stop5h 21m
STL Temperature | 32 - 80.6 °F |
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Crew
Overall
Entertainment
Comfort
Boarding
Food
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Crew
Overall
Entertainment
Comfort
Boarding
Food
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Crew
Overall
Entertainment
Comfort
Boarding
Food
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Crew
Overall
Entertainment
Comfort
Boarding
Food
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Crew
Overall
Entertainment
Comfort
Boarding
Food
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
Crew
Overall
Entertainment
Comfort
Boarding
Food
Reviews
Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
38%of flight departures | Morning6 am to noon |
61%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
Sunday | 6daily flights |
---|---|
Monday | 5daily flights |
Tuesday | 5daily flights |
Wednesday | 5daily flights |
Thursday | 5daily flights |
Friday | 5daily flights |
Saturday | 5daily flights |
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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dulles Intl to St. Louis.
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