Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from District of Columbia to New York from $100

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 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from District of Columbia to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:52 pm - 9:53 am
IAD
-
ISP
17h 01m
1 stop
Frontier Logo
5:43 pm - 10:27 am
ISP
-
IAD
16h 44m
1 stop
$217Frontier
Sat, Aug 22 - Sat, Sep 12
Frontier Logo
12:28 pm - 7:01 pm
IAD
-
ISP
6h 33m
1 stop
Frontier Logo
7:09 pm - 4:07 pm
ISP
-
IAD
20h 58m
1 stop
$229Frontier
Sat, Aug 22 - Sun, Aug 23
Frontier Logo
11:12 am - 4:58 pm
IAD
-
ISP
5h 46m
1 stop
Frontier Logo
5:43 pm - 10:17 am
ISP
-
IAD
16h 34m
1 stop
$240Frontier
Mon, Sep 14 - Wed, Sep 16
Frontier Logo
4:52 pm - 9:53 am
IAD
-
ISP
17h 01m
1 stop
Frontier Logo
10:57 am - 10:07 am
ISP
-
IAD
23h 10m
1 stop
$246Frontier
Sat, Sep 5 - Mon, Sep 7
Frontier Logo
12:28 pm - 7:01 pm
IAD
-
ISP
6h 33m
1 stop
Frontier Logo
7:09 pm - 8:59 pm
ISP
-
IAD
25h 50m
1 stop
$248Frontier
Thu, Aug 27 - Thu, Sep 3
Frontier Logo
12:28 pm - 7:01 pm
IAD
-
ISP
6h 33m
1 stop
Frontier Logo
10:57 am - 8:59 pm
ISP
-
IAD
10h 02m
1 stop
$258Frontier
Fri, Aug 28 - Fri, Sep 4
Frontier Logo
11:12 am - 4:58 pm
IAD
-
ISP
5h 46m
1 stop
Frontier Logo
5:43 pm - 10:27 am
ISP
-
IAD
16h 44m
1 stop
$262Frontier
Wed, Sep 16 - Sat, Sep 19
Frontier Logo
11:12 am - 4:58 pm
IAD
-
ISP
5h 46m
1 stop
Frontier Logo
5:43 pm - 10:17 am
ISP
-
IAD
16h 34m
1 stop
$271Frontier
Thu, Sep 10 - Mon, Sep 14
Frontier Logo
11:10 am - 9:53 am
IAD
-
ISP
22h 43m
1 stop
Frontier Logo
7:09 pm - 10:07 am
ISP
-
IAD
14h 58m
1 stop
$279Frontier
Fri, Aug 14 - Mon, Aug 31
Frontier Logo
12:28 pm - 7:01 pm
IAD
-
ISP
6h 33m
1 stop
Frontier Logo
7:09 pm - 4:07 pm
ISP
-
IAD
20h 58m
1 stop
$289Frontier
Thu, Sep 3 - Sat, Sep 5

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

JetBlue flights from District of Columbia to Islip, New York

Our best JetBlue deals on District of Columbia to Islip, New York flight tickets
JetBlue
Aug 25
DCA3:20 pmWashington, D.C. Reagan-National
6h 29m
1 stop
ISP9:49 pmIslip Long Island
Sep 1
ISP1:25 pmIslip Long Island
6h 34m
1 stop
DCA7:59 pmWashington, D.C. Reagan-National
$311
JetBlue
Aug 26
DCA3:20 pmWashington, D.C. Reagan-National
6h 24m
1 stop
ISP9:44 pmIslip Long Island
Aug 27
ISP6:00 amIslip Long Island
8h 13m
1 stop
DCA2:13 pmWashington, D.C. Reagan-National
$313
JetBlue
Aug 24
DCA3:20 pmWashington, D.C. Reagan-National
6h 24m
1 stop
ISP9:44 pmIslip Long Island
Aug 26
ISP11:35 amIslip Long Island
8h 24m
1 stop
DCA7:59 pmWashington, D.C. Reagan-National
$319

Frontier flights from District of Columbia to Islip, New York

Our best Frontier deals on District of Columbia to Islip, New York flight tickets
Frontier
Aug 22
IAD4:52 pmWashington, D.C. Dulles Intl
17h 01m
1 stop
ISP9:53 amIslip Long Island
Sep 12
ISP5:43 pmIslip Long Island
16h 44m
1 stop
IAD10:27 amWashington, D.C. Dulles Intl
$217
Frontier
Aug 22
IAD12:28 pmWashington, D.C. Dulles Intl
6h 33m
1 stop
ISP7:01 pmIslip Long Island
Aug 23
ISP7:09 pmIslip Long Island
20h 58m
1 stop
IAD4:07 pmWashington, D.C. Dulles Intl
$229
Frontier
Sep 14
IAD11:12 amWashington, D.C. Dulles Intl
5h 46m
1 stop
ISP4:58 pmIslip Long Island
Sep 16
ISP5:43 pmIslip Long Island
16h 34m
1 stop
IAD10:17 amWashington, D.C. Dulles Intl
$240

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Islip, New York 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 July 31, 2026.
Use the filters below to find and compare flights from District of Columbia to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 8/22

4:52 pm-9:53 am

1 stop17h 01m

Islip Long Island

Sat 9/12

5:43 pm-10:27 am

1 stop16h 44m

$217

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 8/22

12:28 pm-7:01 pm

1 stop6h 33m

Islip Long Island

Sun 8/23

7:09 pm-4:07 pm

1 stop20h 58m

$229

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Mon 9/14

11:12 am-4:58 pm

1 stop5h 46m

Islip Long Island

Wed 9/16

5:43 pm-10:17 am

1 stop16h 34m

$240

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Sat 9/5

4:52 pm-9:53 am

1 stop17h 01m

Islip Long Island

Mon 9/7

10:57 am-10:07 am

1 stop23h 10m

$246

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 8/27

12:28 pm-7:01 pm

1 stop6h 33m

Islip Long Island

Thu 9/3

7:09 pm-8:59 pm

1 stop25h 50m

$248
Quickest round-trip

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Fri 8/28

12:28 pm-7:01 pm

1 stop6h 33m

Islip Long Island

Fri 9/4

10:57 am-8:59 pm

1 stop10h 02m

$258

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Wed 9/16

11:12 am-4:58 pm

1 stop5h 46m

Islip Long Island

Sat 9/19

5:43 pm-10:27 am

1 stop16h 44m

$262

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 9/10

11:12 am-4:58 pm

1 stop5h 46m

Islip Long Island

Mon 9/14

5:43 pm-10:17 am

1 stop16h 34m

$271

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Fri 8/14

11:10 am-9:53 am

1 stop22h 43m

Islip Long Island

Mon 8/31

7:09 pm-10:07 am

1 stop14h 58m

$279

Washington, D.C.Islip

IAD - ISP

IADISP

Washington, D.C. Dulles Intl

Thu 9/3

12:28 pm-7:01 pm

1 stop6h 33m

Islip Long Island

Sat 9/5

7:09 pm-4:07 pm

1 stop20h 58m

$289

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to New York from

How to get the cheapest flight ticket from District of Columbia to Islip, New York

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, New York?

The month of February is, on average, the cheapest month to fly to Islip, New York from District of Columbia, with most prices found around $0. If you aren’t able to travel to Islip, New York during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $277.

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, New York flights?

There is only 1 cabin class available to choose from on District of Columbia to Islip, New York 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, New York flight deals and tips

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

Fastest flight time

5h 50m

Direct flights

None
The fastest flight from District of Columbia to Islip, New York takes 5h 50m
There are no direct flights from District of Columbia to Islip, New York. There are no popular flight routes from District of Columbia to Islip, New York.
Search flight deals

Frequently asked questions about flying from District of Columbia to Islip, New York

  • 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, New York

Compare and see reviews for airlines that fly from District of Columbia to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $275Free CancellationRating
8.0
4,226 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
Southampton
Sag Harbor
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.

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 8/30
Sun 9/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States