Cheap flights from Islip, United States to Washington, D.C., United States
Flights starting at $84. Choose between Frontier Airlines, Spirit Airlines, or JetBlue Airways to find the best price.
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Tips to know when travelling to Washington, D.C.
Cheapest one-way trip | $84 |
---|---|
Cheapest round-trip | $156 |
Average round-trip | $263 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
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Book your trip to arrive at Baltimore–Washington International, Washington Dulles International, or Ronald Reagan Washington National. The most popular airlines for this route are Frontier Airlines, Spirit Airlines, JetBlue Airways, Silver Airways, and Allegiant Air. Islip and Washington, D.C. have 47 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, Independence National Historical Park, PA, USA, and National Mall.
Check-in for a flight from Islip to Washington, D.C.
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Silver Airways | SIL | 3M | No | Opens 24 days before flight Closes 2 hours before flight |
Allegiant Air | AAY | G4 | 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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Airports near Islip
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