Cheap flights from Ontario, United States to Washington, D.C., United States
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Tips to know when travelling to Washington, D.C.
Cheapest one-way trip | $240 |
---|---|
Cheapest round-trip | $794 |
Average round-trip | $999 |
Most popular airline | United Airlines |
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Book your trip to arrive at Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National. The most popular airlines for this route are United Airlines, and Alaska Airlines. Ontario and Washington, D.C. have 39 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, and National Mall.
Check-in for a flight from Ontario to Washington, D.C.
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
United Airlines | UAL | UA | Yes | No |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Washington, D.C.
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 5°C | -1°C |
February | 8°C | 0°C |
March | 12°C | 3°C |
April | 19°C | 8°C |
May | 23°C | 13°C |
June | 28°C | 18°C |
July | 31°C | 21°C |
August | 30°C | 20°C |
September | 26°C | 17°C |
October | 20°C | 11°C |
November | 13°C | 4°C |
December | 8°C | 1°C |
14 day forecast
Frequently asked questions
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