Cheap flights from Dulles Intl (IAD) to St. Louis (STL) from $94
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 5/30. 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.
The best prices from Washington, D.C. Dulles Intl to Lambert-St Louis are usually found in December or April, booked 86 days in advance, depart on a Wednesday or Sunday and return on a Tuesday
Cheap flight deals from Dulles Intl to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to St. Louis (STL). 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 May 12, 2024.
Popular in | June |
|---|---|
Cheapest in | December |
Round-trip from | $322 |
One-way from | $178 |
What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to St. Louis?
Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 24% on your flight compared to booking on days when demand is much higher.
How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to St. Louis?
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 $399. For sooner than that we have options available in the next 3 days from $470.
What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to St. Louis?
The best pricing can be found in the month of January. Prices to St. Louis from Washington, D.C. Dulles Intl Airport average $327. You can even find prices in January for less than $327, as users have found deals to St. Louis from as low as $130. The month of March 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 15%.
When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to St. Louis (IAD - STL)?
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.
Cheap United Airlines flights from Dulles Intl to St. Louis
Explore cheap flight options specifically provided by United Airlines for the route between Dulles Intl and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,659,571 searches. Data last updated May 12, 2024.
Check out some of the cheapest United Airlines flights we've come across from Washington, D.C. to St. Louis. Come back soon if you're not finding the exact deal you're looking for.
Cheap Sun Country Air flights from Dulles Intl to St. Louis
Explore cheap flight options specifically provided by Sun Country Air for the route between Dulles Intl and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,659,571 searches. Data last updated May 12, 2024.
Browse through some of the cheapest Sun Country Air flights traveling from Washington, D.C. to St. Louis. Deals frequently update to provide users with more options.
Cheap Dulles Intl to St. Louis flights in May & June 2024
Find cheap flight options from Dulles Intl to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,659,571 searches. Prices were last updated on May 12, 2024.
These are some of the most attractive deals on flights from Washington, D.C. to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
Dulles Intl to St. Louis 2024 flight deals
Discover exclusive flight deals for travel between Dulles Intl and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,659,571 searches. Data last updated May 12, 2024.
These are some of the most attractive deals on flights from Washington, D.C. to St. Louis in 2024. More deals are always being added, so be sure to check back regularly.
Non-stop flights to St. Louis from Dulles Intl
Discover non-stop flight options from Dulles Intl to St. Louis. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,659,571 searches. Data last updated May 12, 2024.
If you're seeking options on non-stop flights from Washington, D.C. to St. Louis, check out these fares. Users seeking other options on flights from Washington, D.C. to St. Louis should update the search form at the top of the page.
Dulles Intl to St. Louis flights leaving soon
Find last-minute flight options from Dulles Intl to St. Louis 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 2,659,571 searches. Data last updated May 12, 2024.
Users seeking a last-minute flight from Washington, D.C. to St. Louis should consider booking one of these fares. Tip: verify your flight details before completing your reservation.
One-way flights to St. Louis from Dulles Intl
Search for one-way flight options from Dulles Intl to St. Louis. 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 2,659,571 searches. Data last updated May 12, 2024.
Some of the best available deals we've found on one-way flights from Washington, D.C. to St. Louis. Those needing a return flight from Washington, D.C. to St. Louis can use the search form above.
Find flights from Dulles Intl to St. Louis within your budget
Customize your flight search to find flights from Dulles Intl to St. Louis 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 2,659,571 searches. Data last updated May 12, 2024.
Fly from
Fly to
Budget
$188 - $264
Route
Depart
Return
Price
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Sun 5/26
1 stop4h 19m
Lambert-St Louis
Thu 5/30
1 stop5h 53m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Tue 6/4
1 stop5h 48m
Lambert-St Louis
Wed 6/12
1 stop3h 48m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Wed 6/5
1 stop4h 19m
Lambert-St Louis
Wed 6/19
1 stop5h 50m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Tue 6/11
1 stop4h 10m
Lambert-St Louis
Tue 6/18
1 stop5h 34m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Mon 7/15
1 stop6h 14m
Lambert-St Louis
Tue 7/30
Nonstop2h 10m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Sun 5/26
Nonstop2h 12m
Lambert-St Louis
Thu 5/30
Nonstop2h 10m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Thu 5/30
1 stop26h 03m
Lambert-St Louis
Sun 6/2
1 stop26h 06m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Tue 6/11
1 stop4h 33m
Lambert-St Louis
Sat 6/15
1 stop5h 21m
Washington, D.C. Dulles IntlLambert-St Louis
IAD - STL
IADSTL
Washington, D.C. Dulles Intl
Tue 6/4
2 stops26h 00m
Lambert-St Louis
Tue 6/11
3 stops18h 57m
When is the best time to book a flight from Washington, D.C. Dulles Intl Airport to St. Louis?
Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to St. Louis. Price data was last updated on May 10, 2024.
The best time to book flights from Washington, D.C. Dulles Intl Airport to St. Louis is 85 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.
When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to St. Louis. Price data was last updated on May 5, 2024.
Average price of flights to St. Louis by month
Plan your trip from Dulles Intl to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Dulles Intl to St. Louis is currently $122 while a round-trip flight costs $229. Price data was last updated on May 5, 2024.
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to St. Louis (average of $322). Flying from Washington, D.C. Dulles Intl Airport to St. Louis in July is currently the most expensive (average of $372). 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.
January
$326
February
$331
March
$357
April
$337
May
$342
June
$369
July
$372
August
$336
September
$322
October
$324
November
$336
December
$326
Temperature and rainfall in St. Louis by month
Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.
STL Temperature | 32 - 80.6 °F |
|---|
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 12, 2024.
Read reviews from past customers who have flown United Airlines, Sun Country Air and Delta from Washington, D.C. to St. Louis. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Entertainment
Overall
Comfort
Food
Boarding
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Crew
Entertainment
Overall
Comfort
Food
Boarding
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Crew
Entertainment
Overall
Comfort
Food
Boarding
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Crew
Entertainment
Overall
Comfort
Food
Boarding
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Crew
Entertainment
Overall
Comfort
Food
Boarding
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Crew
Entertainment
Overall
Comfort
Food
Boarding
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Dulles Intl to St. LouisSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Dulles Intl to St. Louis
Discover the top 3 airlines that operate flights from Dulles Intl to St. Louis. 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 2,659,571 searches. Data last updated May 12, 2024.
Search flights from Dulles Intl to St. Louis by cabin class
Find flights from Dulles Intl to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Dulles Intl to St. Louis
Find hourly flight availability from Dulles Intl to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 12, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 37%of flight departures | Morning6 am to noon |
| 62%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Weekly flight availability from Dulles Intl to St. Louis
Explore weekly flight availability from Dulles Intl to St. Louis. 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 May 12, 2024.
| Sunday | 6daily flights |
|---|---|
| Monday | 5daily flights |
| Tuesday | 5daily flights |
| Wednesday | 5daily flights |
| Thursday | 5daily flights |
| Friday | 5daily flights |
| Saturday | 5daily flights |
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Dulles Intl to St. Louis?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to St. Louis from Dulles Intl today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to St. Louis?
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.
Can Cheapflights find flights from Dulles Intl to St. Louis with no change fees?
Certainly. Search results for flights to St. Louis from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Dulles Intl to St. Louis become cheaper?
Of course! You can now track prices for flights from Dulles Intl to St. Louis and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.