Find Cheap Flights from Washington Dulles to St Louis
Top last minute flight dealsFeeling spontaneous? It’s never too late to book a trip. Here’s our pick of the best last minute flights to St Louis...
- Wed, Oct 9IADSTLSat, Oct 12STLIADUnitedDirectfrom C$338
- Sat, Oct 12IADSTLTue, Oct 15STLIADUnitedDirectfrom C$338
- Thu, Oct 3IADSTLTue, Oct 8STLIADUnitedDirectfrom C$340
Flight information Washington Dulles to St Louis
Cheapest roundtrip price last month
Flights per week
Average flight time, total distance 1118 kilometers
Most popular airline last month
Frequently asked questions
Flights from Washington Dulles to St Louis
Finding the best flights from Washington Dulles to St Louis is not always easy – especially when you are on a budget. To make it simple to find the best flight from Washington Dulles to St Louis for your needs, whether that is the cheapest option available, or with your chosen airline, Skyscanner has designed a flight search with quick filters and sorting capabilities that make it easy to find, compare and contrast flight options and itineraries. Features include:
- The ability to search for flights departing and returning within the cheapest months to St Louis
- A calendar view and chart view which highlights when flights are the cheapest to St Louis, and when they are most expensive
- The ability to sort flights to St Louis by the ‘Best’, ‘Cheapest’, ‘Fastest’, and more
- The option to filter for non-stop flights, flights leaving or arriving at certain times, flights with certain airlines, alliances and more when searching for flights to St Louis
Get Cheap Flights from Washington Dulles to St Louis: Our Top Tips
In addition to using the Skyscanner search to find the best deals at any given time, there are tips and tricks to getting even better deals. These include:
- Using our ’Best Time to Book’ tool to make sure that you are getting the best price on your flights from Washington Dulles to St Louis
- Track the price of flights to St Louis by registering for Skyscanner Price Alerts
- If your travel dates are flexible, then our 'whole month' search tool will help you find the cheapest day to travel
- If you are after last minute flights, our guide to finding last minute deals will help you get to St Louis for less
Essential travel information: Washington Dulles to St Louis
Our travel information panel above gives useful information about:
- The distance between Washington Dulles and St Louis
- The time it takes to fly to St Louis from Washington Dulles
- The airlines with the cheapest flights from Washington Dulles to St Louis
- The airlines which fly direct to St Louis from Washington Dulles.
The Skyscanner flight tracker: Monitor your flight status from Washington Dulles to St Louis with our free app!
With the Skyscanner App you can get essential flight updates. We'll track your flight information and let you know the latest schedule information and any changes to information for your journey to St Louis from Washington Dulles.
Flights from Washington Dulles to St Louis: Frequently Asked Questions
How can I find cheap flights from Washington Dulles to St Louis?
Be flexible and open to travelling during off-peak times like mid-week and later in the evenings or early mornings. Flights between Washington Dulles and St Louis are likely to be cheaper during these times, as the cheapest flight fares are usually found outside of peak times. You can read more about finding cheap flights in our dedicated guide.
When is the best time to book flights from Washington Dulles to St Louis?
The best times to book flights are typically on Tuesday or Wednesday. Avoid booking flights from Washington Dulles to St Louis on Fridays and Saturdays, as flight prices tend to fluctuate during those days. You can read more about the best time to book in our dedicated Best Time to Book guide.
How far in advance should I book my flight from Washington Dulles to St Louis?
We recommend that you book your flight to St Louis approximately seven to twelve weeks in advance to save the most money. You can get more details in our Best Time to Book guide.
Do members of the military get discounts on flights to St Louis?
Members of the military get free baggage allowance on Canadian airlines such as WestJet. Therefore, the option to get military discounts to St Louis will depend on the airline you are flying with to St Louis.
Looking to book a hotel or rent a car whilst you're in St Louis?
If you are still in need of a hotel in St Louis, or would like to give yourself the freedom to roam during your stay, why not try our car rental search or hotel search? We will compare the full range of hotels and car rental providers to find you the best deals in St Louis. Try it today:
- Search and compare hotels for the best deals in St Louis
- Compare our range of car rental providers so you can explore St Louis for less
Prices shown on this page are estimated lowest prices only. Found in the last 45 days.