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Cheap Flights From St. Louis, Missouri (STL) To Washington, D.C. (IAD)

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Fares from St. Louis, MO (STL)
$293 RT to
Washington, D.C. (IAD)
Sorry this deal is over or has been sold out! But here’s another great Airfarewatchdog verified fare for this route!
Airline(s)
United
Seats:
Seats are not available on all flights or all dates of travel. You may need to have flexible travel dates to find this fare. Fares for travel on holidays may be higher.
Adv. Purchase:
21 Days
Available:
7 days/week, if available
Travel Ending:
Thursday, 01 January 2015
Other Stay Requirements:
Required
More Details:
Non-Stop Flights
Last Updated:
Wednesday, 30 July 2014
Our Notes:
Cheapair.com will add a $9.95 booking fee.
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All mandatory taxes/fees are included in the price. Tax-inclusive fare may be a few dollars higher or lower depending on the airport you connect through, if any. Baggage fees, if applicable, and other optional fees are not included.

Our Dealhounds found this airfare using flexible date search. This means we searched a range of dates to find you the best price.

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More Flights From St. Louis To Washington, D.C. (STL-IAD)

Price
Details
$293 RT Lowest fare found for travel within the next 30 days. (United) See all details »
  • Airline(s):
    United
  • Seats are:
    Seats Are Not Available On All Flights Or All Dates Of Travel. You May Need To Have Flexible Travel Dates To Find This Fare. Fares For Travel On Holidays May Be Higher.
  • Advance Purchase:
    20 Days
  • Available for travel:
    Mon-Sat
  • Travel starting:
    Tuesday, 19 August 2014
  • More Details:
    Lowest Fare Found For Travel Within The Next 30 Days.
  • Last Updated:
    Wednesday, July 30, 2014
$135 RT Late Summer/Fall travel; Nonstop flights. No min. stay (Frontier) See all details »
  • Airline(s):
    Frontier
  • Seats are:
    Seats Are Not Available On All Flights Or All Dates Of Travel. You May Need To Have Flexible Travel Dates To Find This Fare. Fares For Travel On Holidays May Be Higher.
  • Available for travel:
    Tue, Thur & Sat
  • Travel starting:
    Tuesday, 09 September 2014
  • Travel ending:
    Tuesday, February 24, 2015
  • More Details:
    Late Summer/Fall Travel; Nonstop Flights, No Min. Stay
  • Last Updated:
    Wednesday, July 30, 2014
  • Our Notes:
    New nonstop service on Frontier Airlines begins Sep. 9, 2014. Frontier charges a $25 fee each way for carry-on bags larger than 18 x 14 x 8 in. Frontier ...moredoes not operate this route daily so you may have to click around to find flights. CheapAir charges a $9.95 booking fee. Use caution when booking as flights from/to Washington's Dulles (IAD), National (DCA), and Baltimore (BWI) airports will be shown. Lower fares may be available from/to nearby Washington D.C. area airports.
$310 RT No min. stay. Fare can be bought one-way for half the lowest roundtrip ... (Southwest) See all details »
  • Airline(s):
    Southwest
  • Seats are:
    Seats Are Not Available On All Flights Or All Dates Of Travel. You May Need To Have Flexible Travel Dates To Find This Fare. Fares For Travel On Holidays May Be Higher.
  • Advance Purchase:
    21 Days
  • Available for travel:
    7 Days/week, If Available
  • Travel ending:
    Thursday, January 1, 2015
  • More Details:
    No Min. Stay, Fare Can Be Bought One-way For Half The Lowest Roundtrip Price, No Peak Holiday Travel At This Price
  • Last Updated:
    Wednesday, July 30, 2014
  • Our Notes:
    This is a fare from Southwest - visit Southwest.com to find this fare. Other airlines often match Southwest sales, so search other sites to find the best ...moreoption.

Reviews for St. Louis to Washington, D.C. (STL-IAD)

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Sample Fares found by other travelers within the past 72 hours
Price From/To Depart/Return Airline
$355 Flight from St. Louis to Dulles (STL-IAD) Fri, Jun 13 - Tue, Jun 24 Delta Air Lines
$359 Flight from St. Louis to Dulles (STL-IAD) Tue, Jun 10 - Wed, Jun 11 Delta Air Lines
$399 Flight from St. Louis to Dulles (STL-IAD) Fri, Jun 13 - Sun, Jun 15 Delta Air Lines
$428 Flight from St. Louis to Dulles (STL-IAD) Thu, Jun 12 - Sun, Jun 15 Delta Air Lines
$489 Flight from St. Louis to Dulles (STL-IAD) Sat, Jun 14 - Thu, Jun 19 Delta Air Lines
$492 Flight from St. Louis to Dulles (STL-IAD) Wed, Jun 11 - Thu, Jun 12 Delta Air Lines
$530 Flight from St. Louis to Dulles (STL-IAD) Thu, Jun 5 - Wed, Jun 11 Delta Air Lines
$569 Flight from St. Louis to Dulles (STL-IAD) Sun, Jun 8 - Wed, Jun 11 Delta Air Lines
$575 Flight from St. Louis to Dulles (STL-IAD) Fri, Jun 13 - Sun, Jun 22 Delta Air Lines
$708 Flight from St. Louis to Dulles (STL-IAD) Tue, Jun 10 - Tue, Jun 10 United Airlines
There are approximately 297 flights covering the route from Lambert-St. Louis International Airport in St. Louis to Dulles International Airport in Washington, D.C., provided by as many as 8 airlines.

The following airlines sometimes offer nonstop cheap flights from St. Louis to Washington, D.C.:

Transwest Air

As an alternative to flying from St. Louis, you may also want to try searching for cheap flights from Columbia (COU).
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