Cheap flights from Islip, United States to Washington, D.C., United States
Flights starting at £63. Choose between Frontier Airlines, JetBlue Airways, or Spirit Airlines to find the best price.
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Tips to know when travelling to Washington, D.C.
Cheapest one-way trip | £76 |
---|---|
Cheapest round-trip | £144 |
Average round-trip | £168 |
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, JetBlue Airways, Spirit Airlines, BREEZE, and Silver Airways. Islip and Washington, D.C. have 149 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, National Mall, and Independence National Historical Park, PA, USA.
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 |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
BREEZE | MX | No | No | |
Silver Airways | SIL | 3M | No | Opens 24 days before flight Closes 2 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
- John F. Kennedy International
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