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Long Island to Washington DC flight ticket price

Compare live prices for ISP to DCA. Use the search panel to change origin, destination, passengers, cabin and trip type instantly.
ISP → DCA Approx. 399.63 km 11 May 2026 Live inventory
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Showing 25 of 50 live flights
Southwest Airlines
WN-2160
06:00
05/11/2026
ISP
Long Island Mac Arthur Airport
1h 20m
Non-stop
07:20
05/11/2026
BWI
Ronald Reagan Washington National Airport
₹18,653
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-1077
08:35
05/11/2026
ISP
Long Island Mac Arthur Airport
1h 20m
Non-stop
09:55
05/11/2026
BWI
Ronald Reagan Washington National Airport
₹18,653
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-1257
16:30
05/11/2026
ISP
Long Island Mac Arthur Airport
1h 20m
Non-stop
17:50
05/11/2026
BWI
Ronald Reagan Washington National Airport
₹18,653
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-3081
12:30
05/11/2026
ISP
Long Island Mac Arthur Airport
1h 15m
Non-stop
13:45
05/11/2026
BWI
Ronald Reagan Washington National Airport
₹23,033
per person
✕ Non-refundable🔥 Last 1 seats9 fare options
Southwest Airlines
WN-2080
17:10
05/11/2026
ISP
Long Island Mac Arthur Airport
5h 40m
1 Stop
⏱ MCO · 0h 35mMCO Airport
22:50
05/11/2026
DCA
Ronald Reagan Washington National Airport
₹25,501
per person
✕ Non-refundable🔥 Last 1 seats9 fare options
Southwest Airlines
WN-2080
17:10
05/11/2026
ISP
Long Island Mac Arthur Airport
17h 50m
1 Stop
⏱ MCO · 12h 50mMCO Airport
11:00
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹25,743
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-2498
06:50
05/11/2026
ISP
Long Island Mac Arthur Airport
8h 50m
1 Stop
⏱ MCO · 3h 55mMCO Airport
15:40
05/11/2026
DCA
Ronald Reagan Washington National Airport
₹26,212
per person
✕ Non-refundable🔥 Last 3 seats10 fare options
Cape Air
9K-210
07:25
05/11/2026
ISP
Long Island Mac Arthur Airport
24h 34m
1 Stop
⏱ BOS · 21h 21mBOS Airport
07:59
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹39,390
per person
✕ Non-refundable🔥 Last 2 seats
Cape Air
9K-210
07:25
05/11/2026
ISP
Long Island Mac Arthur Airport
26h 19m
1 Stop
⏱ BOS · 23h 1mBOS Airport
09:44
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹39,390
per person
✕ Non-refundable🔥 Last 2 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
22h 0m
1 Stop
⏱ BOS · 18h 56mBOS Airport
07:59
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹39,390
per person
✕ Non-refundable🔥 Last 1 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
25h 11m
1 Stop
⏱ BOS · 22h 5mBOS Airport
11:10
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹39,390
per person
✕ Non-refundable🔥 Last 1 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
23h 45m
1 Stop
⏱ BOS · 20h 36mBOS Airport
09:44
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹39,390
per person
✕ Non-refundable🔥 Last 1 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
6h 43m
1 Stop
⏱ BOS · 3h 35mBOS Airport
16:42
05/11/2026
DCA
Ronald Reagan Washington National Airport
₹40,754
per person
✕ Non-refundable🔥 Last 1 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
7h 47m
1 Stop
⏱ BOS · 4h 35mBOS Airport
17:46
05/11/2026
DCA
Ronald Reagan Washington National Airport
₹41,283
per person
✕ Non-refundable🔥 Last 1 seats
Cape Air
9K-210
07:25
05/11/2026
ISP
Long Island Mac Arthur Airport
26h 27m
1 Stop
⏱ BOS · 23h 5mBOS Airport
09:52
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹41,755
per person
✓ Refundable🔥 Last 2 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
24h 55m
1 Stop
⏱ BOS · 21h 46mBOS Airport
10:54
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹41,755
per person
✓ Refundable🔥 Last 1 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
22h 47m
1 Stop
⏱ BOS · 19h 36mBOS Airport
08:46
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹41,755
per person
✓ Refundable🔥 Last 1 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
21h 47m
1 Stop
⏱ BOS · 18h 36mBOS Airport
07:46
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹41,755
per person
✓ Refundable🔥 Last 1 seats
Cape Air
9K-212
09:59
05/11/2026
ISP
Long Island Mac Arthur Airport
23h 53m
1 Stop
⏱ BOS · 20h 40mBOS Airport
09:52
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹41,755
per person
✓ Refundable🔥 Last 1 seats
Cape Air
9K-210
07:25
05/11/2026
ISP
Long Island Mac Arthur Airport
25h 21m
1 Stop
⏱ BOS · 22h 1mBOS Airport
08:46
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹41,755
per person
✓ Refundable🔥 Last 2 seats
Cape Air
9K-210
07:25
05/11/2026
ISP
Long Island Mac Arthur Airport
24h 21m
1 Stop
⏱ BOS · 21h 1mBOS Airport
07:46
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹41,755
per person
✓ Refundable🔥 Last 2 seats
Cape Air
9K-214
12:30
05/11/2026
ISP
Long Island Mac Arthur Airport
19h 29m
1 Stop
⏱ BOS · 16h 16mBOS Airport
07:59
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹42,229
per person
✕ Non-refundable🔥 Last 2 seats
Cape Air
9K-214
12:30
05/11/2026
ISP
Long Island Mac Arthur Airport
22h 40m
1 Stop
⏱ BOS · 19h 25mBOS Airport
11:10
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹42,229
per person
✕ Non-refundable🔥 Last 2 seats
Cape Air
9K-214
12:30
05/11/2026
ISP
Long Island Mac Arthur Airport
21h 14m
1 Stop
⏱ BOS · 17h 56mBOS Airport
09:44
05/12/2026
+1
DCA
Ronald Reagan Washington National Airport
₹42,229
per person
✕ Non-refundable🔥 Last 2 seats
Cape Air
9K-214
12:30
05/11/2026
ISP
Long Island Mac Arthur Airport
7h 22m
1 Stop
⏱ BOS · 3h 51mBOS Airport
19:52
05/11/2026
DCA
Ronald Reagan Washington National Airport
₹42,588
per person
✕ Non-refundable🔥 Last 2 seats
😕 No flights match your filters.
Long Island (ISP)
📍 Long Island Mac Arthur Airport
🌍 United States
🕐 GMT -5
📐 Latitude: 40.79520035
📐 Longitude: -73.10019684
Washington DC (DCA)
📍 Ronald Reagan Washington National Airport
🌍 United States
🕐 GMT -5
📐 Latitude: 38.8521
📐 Longitude: -77.037697

✈ Distance: Long Island, Islip,USA to Washington DC,USA399.63 km

📅 Results on this page are loaded for 11 May 2026. Click View all flights for the complete live search.

Long Island to Washington DC — what to expect when booking

The ISP–DCA route is served by multiple carriers throughout the year. Fares on this route can move quickly — a price available now may not be there 30 minutes later.

If your dates are flexible, try shifting your departure by a day or two using the date strip above. Mid-week departures often show lower base fares compared to weekend starts on many routes.

The distance between Long Island, Islip,USA and Washington DC,USA is approximately 399.63 km.

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More flights from Long Island (ISP)
9 routes
More flights from Washington DC (DCA)
87 routes
Washington DC Akron
DCA → CAK
Washington DC Albany
DCA → ALB
Washington DC Atlanta
DCA → ATL
Washington DC Augusta
DCA → AGS
Washington DC Austin
DCA → AUS
Washington DC Bangor
DCA → BGR
Washington DC Birmingham
DCA → BHM
Washington DC Boston
DCA → BOS
Washington DC Buffalo
DCA → BUF
Washington DC Burlington
DCA → BTV
Washington DC Charleston
DCA → CHS
Washington DC Charlotte
DCA → CLT
Washington DC Chattanooga
DCA → CHA
Washington DC Chicago
DCA → ORD
Washington DC Cincinnati
DCA → CVG
Washington DC Cleveland
DCA → CLE
Washington DC Columbia
DCA → CAE
Washington DC Columbus
DCA → CMH
Washington DC Dayton
DCA → DAY
Washington DC Denver
DCA → DEN
Washington DC Des Moines
DCA → DSM
Washington DC Detroit
DCA → DTW
Washington DC Fayetteville
DCA → FAY
Washington DC Fort Lauderdale
DCA → FLL
Washington DC Fort Myers
DCA → RSW
Washington DC Fort Walton Beach
DCA → VPS
Washington DC Fort Worth
DCA → DFW
Washington DC Greensboro
DCA → GSO
Washington DC Greenville
DCA → GSP
Washington DC Halifax International
DCA → YHZ
Washington DC Hartford
DCA → BDL
Washington DC Hilton Head Island
DCA → HHH
Washington DC Houston
DCA → IAH
Washington DC Houston
DCA → HOU
Washington DC Huntsville
DCA → HSV
Washington DC Indianapolis
DCA → IND
Washington DC Jackson
DCA → JAN
Washington DC Jacksonville
DCA → JAX
Washington DC Kansas City
DCA → MCI
Washington DC Knoxville
DCA → TYS
Washington DC Lansing
DCA → LAN
Washington DC Las Vegas
DCA → LAS
Washington DC Lexington
DCA → LEX
Washington DC Little Rock
DCA → LIT
Washington DC Long Island
DCA → ISP
Washington DC Los Angeles
DCA → LAX
Washington DC Louisville
DCA → SDF
Washington DC Madison
DCA → MSN
Washington DC Manchester
DCA → MHT
Washington DC Memphis
DCA → MEM
Washington DC Miami
DCA → MIA
Washington DC Milwaukee
DCA → MKE
Washington DC Minneapolis
DCA → MSP
Washington DC Montreal
DCA → YUL
Washington DC Myrtle Beach
DCA → MYR
Washington DC Nashville
DCA → BNA
Washington DC Nassau
DCA → NAS
Washington DC New Orleans
DCA → MSY
Washington DC New York
DCA → EWR
Washington DC Norfolk
DCA → ORF
Washington DC Omaha
DCA → OMA
Washington DC Orlando
DCA → MCO
Washington DC Ottawa
DCA → YOW
Washington DC Pensacola
DCA → PNS
Washington DC Philadelphia
DCA → PHL
Washington DC Phoenix
DCA → PHX
Washington DC Pittsburgh International Airport
DCA → PIT
Washington DC Portland International
DCA → PDX
Washington DC Portland
DCA → PWM
Washington DC Providence
DCA → PVD
Washington DC Raleigh
DCA → RDU
Washington DC Rochester
DCA → ROC
Washington DC Salt Lake City
DCA → SLC
Washington DC San Diego
DCA → SAN
Washington DC San Francisco
DCA → SFO
Washington DC San Juan
DCA → SJU
Washington DC Sarasota
DCA → SRQ
Washington DC Savannah
DCA → SAV
Washington DC Seattle
DCA → SEA
Washington DC St. Louis
DCA → STL
Washington DC Syracuse
DCA → SYR
Washington DC Tallahassee
DCA → TLH
Washington DC Tampa
DCA → TPA
Washington DC Toronto
DCA → YYZ
Washington DC West Palm Beach
DCA → PBI
Washington DC White Plains
DCA → HPN
Washington DC Wilmington
DCA → ILM
❓ Frequently asked questions — Long Island to Washington DC flights

Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.

The straight-line distance between Long Island, Islip,USA (ISP) and Washington DC,USA (DCA) is approximately 399.63 km. Actual flying distance may vary slightly depending on routing.

Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.

Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.