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Cheap flights from District of Columbia to New York from $83

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to New York departing on 10/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from District of Columbia to New York

Cheap round-trip flights

Frontier Logo
5:34 pm - 8:54 amIAD-ISP
15h 20m2 stops
Frontier Logo
9:27 pm - 4:34 pmISP-IAD
19h 07m2 stops
$231Frontier
Find Deal
Thu, Nov 6 - Sun, Nov 9
Frontier Logo
7:14 pm - 8:42 pmIAD-ISP
25h 28m1 stop
Frontier Logo
9:59 am - 6:45 pmISP-IAD
8h 46m1 stop
$235Frontier
Find Deal
Mon, Oct 6 - Fri, Oct 10
Frontier Logo
9:52 pm - 8:54 amIAD-ISP
11h 02m1 stop
Frontier Logo
8:49 am - 12:11 amISP-IAD
15h 22m2 stops
$262Frontier
Find Deal
Thu, Nov 6 - Sun, Nov 9
Frontier Logo
5:34 pm - 10:37 amIAD-ISP
17h 03m2 stops
Frontier Logo
9:27 pm - 4:34 pmISP-IAD
19h 07m2 stops
$263Frontier
Find Deal
Fri, Nov 7 - Sun, Nov 9
Southwest Logo
11:55 am - 10:35 pmDCA-ISP
10h 40m1 stop
Southwest Logo
3:25 pm - 10:50 pmISP-DCA
7h 25m1 stop
$373Southwest
Find Deal
Thu, Nov 6 - Sun, Nov 9
Southwest Logo
11:55 am - 10:35 pmDCA-ISP
10h 40m1 stop
Southwest Logo
1:40 pm - 10:50 pmISP-DCA
9h 10m2 stops
$379Southwest
Find Deal
Thu, Nov 6 - Sun, Nov 9
Multiple Airlines Logo
2:10 pm - 11:15 amIAD-ISP
21h 05m1 stop
Multiple Airlines Logo
9:47 pm - 8:43 pmISP-IAD
22h 56m1 stop
$523Multiple Airlines
Find Deal
Thu, Oct 16 - Sun, Oct 19
JetBlue Logo
6:45 am - 1:02 pmDCA-ISP
6h 17m1 stop
JetBlue Logo
1:57 pm - 10:15 pmISP-DCA
8h 18m1 stop
$554JetBlue
Find Deal
Thu, Oct 30 - Sat, Nov 1
JetBlue Logo
6:15 am - 1:11 pmDCA-ISP
6h 56m1 stop
JetBlue Logo
1:55 pm - 10:15 pmISP-DCA
8h 20m1 stop
$689JetBlue
Find Deal
Fri, Oct 31 - Sun, Nov 2
Multiple Airlines Logo
5:10 pm - 11:04 amIAD-ISP
17h 54m1 stop
Multiple Airlines Logo
9:59 am - 8:54 pmISP-IAD
10h 55m1 stop
$739Multiple Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16

Frontier flights from District of Columbia to Islip

Our best Frontier deals on District of Columbia to Islip flight tickets
Frontier
Oct 3
IAD7:14 pmWashington, D.C. Dulles Intl
15h 41m
1 stop
ISP10:55 amIslip Long Island
Oct 5
ISP5:12 pmIslip Long Island
22h 27m
1 stop
IAD3:39 pmWashington, D.C. Dulles Intl
$175
Find similar
Frontier
Sep 29
IAD7:14 pmWashington, D.C. Dulles Intl
15h 26m
1 stop
ISP10:40 amIslip Long Island
Oct 2
ISP11:40 amIslip Long Island
6h 44m
1 stop
IAD6:24 pmWashington, D.C. Dulles Intl
$202
Find similar
Frontier
Nov 6
IAD5:34 pmWashington, D.C. Dulles Intl
15h 20m
2 stops
ISP8:54 amIslip Long Island
Nov 9
ISP9:27 pmIslip Long Island
19h 07m
2 stops
IAD4:34 pmWashington, D.C. Dulles Intl
$231
Find similar

Southwest flights from District of Columbia to Islip

Our best Southwest deals on District of Columbia to Islip flight tickets
Southwest
Nov 6
DCA11:55 amWashington, D.C. Reagan-National
10h 40m
1 stop
ISP10:35 pmIslip Long Island
Nov 9
ISP3:25 pmIslip Long Island
7h 25m
1 stop
DCA10:50 pmWashington, D.C. Reagan-National
$373
Find similar
Southwest
Nov 6
DCA11:55 amWashington, D.C. Reagan-National
10h 40m
1 stop
ISP10:35 pmIslip Long Island
Nov 9
ISP1:40 pmIslip Long Island
9h 10m
2 stops
DCA10:50 pmWashington, D.C. Reagan-National
$379
Find similar
Southwest
Oct 7
DCA7:25 amWashington, D.C. Reagan-National
8h 55m
2 stops
ISP4:20 pmIslip Long Island
Oct 10
ISP3:20 pmIslip Long Island
7h 35m
1 stop
DCA10:55 pmWashington, D.C. Reagan-National
$454
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 25, 2025.
Use the filters below to find and compare flights from District of Columbia to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 11/6

5:34 pm-8:54 am

2 stops15h 20m

Islip Long Island

Sun 11/9

9:27 pm-4:34 pm

2 stops19h 07m

$231

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Mon 10/6

7:14 pm-8:42 pm

1 stop25h 28m

Islip Long Island

Fri 10/10

9:59 am-6:45 pm

1 stop8h 46m

$235

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 11/6

9:52 pm-8:54 am

1 stop11h 02m

Islip Long Island

Sun 11/9

8:49 am-12:11 am

2 stops15h 22m

$262

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Fri 11/7

5:34 pm-10:37 am

2 stops17h 03m

Islip Long Island

Sun 11/9

9:27 pm-4:34 pm

2 stops19h 07m

$263

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 11/6

11:55 am-10:35 pm

1 stop10h 40m

Islip Long Island

Sun 11/9

3:25 pm-10:50 pm

1 stop7h 25m

$373

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 11/6

11:55 am-10:35 pm

1 stop10h 40m

Islip Long Island

Sun 11/9

1:40 pm-10:50 pm

2 stops9h 10m

$379

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 10/16

2:10 pm-11:15 am

1 stop21h 05m

Islip Long Island

Sun 10/19

9:47 pm-8:43 pm

1 stop22h 56m

$523

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Thu 10/30

6:45 am-1:02 pm

1 stop6h 17m

Islip Long Island

Sat 11/1

1:57 pm-10:15 pm

1 stop8h 18m

$554

Washington, D.C.Islip

DCA - ISP

DCAISP

Washington, D.C. Reagan-National

Fri 10/31

6:15 am-1:11 pm

1 stop6h 56m

Islip Long Island

Sun 11/2

1:55 pm-10:15 pm

1 stop8h 20m

$689

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 12/13

5:10 pm-11:04 am

1 stop17h 54m

Islip Long Island

Tue 12/16

9:59 am-8:54 pm

1 stop10h 55m

$739

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from District of Columbia to Islip

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Islip?

In general, April is the cheapest month to fly from District of Columbia to Islip. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $285. If you’re not able to fly to Islip in April, then March is your next best option. Flight prices from District of Columbia to Islip during March average around $320.

What is the cheapest day to depart on your flight to Islip?

On average, the least expensive day to fly to Islip from District of Columbia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $296. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from District of Columbia to Islip on a Sunday will generally be more expensive and average around $487. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Islip?

Flying to Islip from District of Columbia in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $337 when looking at flights departing in the afternoon. Flights in the morning are often more expensive with an average ticket price of $377.

What is the cheapest District of Columbia to Islip Long Island flight route?

Fly from Baltimore/Washington to Islip Long Island for the best District of Columbia - Islip Long Island flight prices

What cabin class options are available on District of Columbia to Islip Long Island flights?

There is only 1 cabin class available to choose from on District of Columbia to Islip Long Island flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap District of Columbia to Islip flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Islip

Direct flights

None
There are no direct flights from District of Columbia to Islip. There are no popular flight routes from District of Columbia to Islip.
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to Islip Long Island Airport?

    Prices for flights from District of Columbia to Islip Long Island Airport are updated daily.

  • How old do you have to be to fly from District of Columbia to Islip Long Island Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from District of Columbia to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Islip

Compare and see reviews for airlines that fly from District of Columbia to Islip with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $233Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Sag Harbor
Southampton
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Islip?

It is quick and easy to find District of Columbia to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from District of Columbia to Islip with flexible booking policies on momondo?

All flight searches from District of Columbia to Islip on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Islip?

Once you have performed a search for District of Columbia to Islip flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from District of Columbia to Islip right now. Can momondo alert me if prices change?

Yes. momondo can track prices for District of Columbia to Islip flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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