Fare Guide

Estimated lowest fares found within 7 days

Cheapest Airline United Airlines

The cheapest airline(s) flying from Washington to Houston is United Airlines.

  • United Airlines United Airlines
  • American Airlines American Airlines
Cheapest Month October

Travel Period: March 2025 - February 2026

The cheapest month(s) to fly from Washington to Houston is October.

  • Mar 2025
  • Apr 2025
  • May 2025
  • Jun 2025
  • Jul 2025
  • Aug 2025
  • Sep 2025
  • Oct 2025
  • Nov 2025
  • Dec 2025
  • Jan 2026
  • Feb 2026
Cheapest Day of the Week Thursday

The cheapest day(s) of the week to fly from Washington to Houston is Thursday.

  • Sun Sunday
  • Mon Monday
  • Tue Tuesday
  • Wed Wednesday
  • Thu Thursday
  • Fri Friday
  • Sat Saturday

Flight Schedules

Last Updated: Sun, 2 Feb, 2025

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      • 14:35 IAD
        21:14 IAH
        7Hrs, 39m 1 Stop (YYZ)
      • IADWashington Dulles International Airport 14:35 - IAH 21:14 7h 39m 1 Stop (YYZ) Toronto
      • IADWashington Dulles International Airport 14:35
        YYZToronto Lester B Pearson Intl Airport 18:30
      • YYZToronto Lester B Pearson Intl Airport 16:06
        IAHHouston George Bush Intercontinental Airport 21:14
      • 7h 39m (2h 24m)
      • 1 Stop YYZ · Toronto 2h 24m
      • Air Canada (AC 8619)Embraer Emb 175
        Air Canada (AC 595)Airbus A220 300
      • Air Canada (AC 8619)
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      No Schedules Sorry, there are no schedules matching your filters. Try removing one. reset
      What’s the most popular airline flying from Washington to Houston?

      The most popular airline flying from Washington to Houston is Frontier Airlines. Find the latest flight deals on Wego.

      How far is Houston from Washington?

      The flight distance between Washington and Houston is 1961km. Check all available flights on Wego.

      When is the earliest and latest flight of the day?

      The earliest flight of the day departs at 14:35. The last flight of the day departs at 14:35. See the full list of flight times on Wego.

      Popular Airlines Flying From Washington to Houston

      Frontier Airlines ‏()
      Southwest Airlines ‏()
      American Airlines ‏()
      United Airlines ‏()

      Popular Destinations From Houston

      Popular Destinations From Washington

      Popular Hotels in Houston

      Hotels In Popular Destinations