Flights from Denver to Islip

Cheapest flights from Denver

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 5 - Mon, Sep 8

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$197 Roundtrip, found 6 days ago

$197

Roundtrip

found 6 days ago

Select Delta flight, departing Fri, Sep 5 from Denver Intl. to John F. Kennedy Intl., returning Mon, Sep 8, priced at $197 found 6 days ago

Sun, Sep 7 - Thu, Sep 11

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$207 Roundtrip, found 6 days ago

$207

Roundtrip

found 6 days ago

Select American Airlines flight, departing Sun, Sep 7 from Denver Intl. to John F. Kennedy Intl., returning Thu, Sep 11, priced at $207 found 6 days ago

Wed, Aug 13 - Sun, Aug 17

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$222 Roundtrip, found 5 days ago

$222

Roundtrip

found 5 days ago

Select JetBlue Airways flight, departing Wed, Aug 13 from Denver Intl. to John F. Kennedy Intl., returning Sun, Aug 17, priced at $222 found 5 days ago

Wed, Jul 16 - Tue, Jul 22

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$237 Roundtrip, found 5 days ago

$237

Roundtrip

found 5 days ago

Select JetBlue Airways flight, departing Wed, Jul 16 from Denver Intl. to John F. Kennedy Intl., returning Tue, Jul 22, priced at $237 found 5 days ago

Tue, Jul 15 - Mon, Jul 21

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$242 Roundtrip, found 2 days ago

$242

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Tue, Jul 15 from Denver Intl. to John F. Kennedy Intl., returning Mon, Jul 21, priced at $242 found 2 days ago

Mon, Jul 14 - Mon, Jul 21

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$247 Roundtrip, found 2 days ago

$247

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Mon, Jul 14 from Denver Intl. to John F. Kennedy Intl., returning Mon, Jul 21, priced at $247 found 2 days ago

Sun, Sep 7 - Thu, Sep 11

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$252 Roundtrip, found 6 days ago

$252

Roundtrip

found 6 days ago

Select American Airlines flight, departing Sun, Sep 7 from Denver Intl. to John F. Kennedy Intl., returning Thu, Sep 11, priced at $252 found 6 days ago

Sun, Sep 7 - Thu, Sep 11

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$258 Roundtrip, found 6 days ago

$258

Roundtrip

found 6 days ago

Select American Airlines flight, departing Sun, Sep 7 from Denver Intl. to John F. Kennedy Intl., returning Thu, Sep 11, priced at $258 found 6 days ago

Thu, Jul 17 - Tue, Jul 22

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$262 Roundtrip, found 2 days ago

$262

Roundtrip

found 2 days ago

Select American Airlines flight, departing Thu, Jul 17 from Denver Intl. to John F. Kennedy Intl., returning Tue, Jul 22, priced at $262 found 2 days ago

Sun, Jul 20 - Fri, Jul 25

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$272 Roundtrip, found 2 days ago

$272

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Sun, Jul 20 from Denver Intl. to John F. Kennedy Intl., returning Fri, Jul 25, priced at $272 found 2 days ago

Sun, Jun 29 - Tue, Jul 1

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$274 Roundtrip, found 2 days ago

$274

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jun 29 from Denver Intl. to John F. Kennedy Intl., returning Tue, Jul 1, priced at $274 found 2 days ago

Tue, Oct 14 - Tue, Oct 21

COS

Colorado Springs

JFK

John F. Kennedy Intl.

$279 Roundtrip, found 4 days ago

$279

Roundtrip

found 4 days ago

Select Delta flight, departing Tue, Oct 14 from Colorado Springs to John F. Kennedy Intl., returning Tue, Oct 21, priced at $279 found 4 days ago

Thu, Jul 17 - Tue, Jul 22

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$282 Roundtrip, found 2 days ago

$282

Roundtrip

found 2 days ago

Select Delta flight, departing Thu, Jul 17 from Denver Intl. to John F. Kennedy Intl., returning Tue, Jul 22, priced at $282 found 2 days ago

Sun, Jun 29 - Wed, Jul 2

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$284 Roundtrip, found 2 days ago

$284

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jun 29 from Denver Intl. to John F. Kennedy Intl., returning Wed, Jul 2, priced at $284 found 2 days ago

Sat, Jun 28 - Tue, Jul 1

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$286 Roundtrip, found 2 days ago

$286

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Jun 28 from Denver Intl. to John F. Kennedy Intl., returning Tue, Jul 1, priced at $286 found 2 days ago

Sun, Sep 7 - Thu, Sep 11

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$287 Roundtrip, found 6 days ago

$287

Roundtrip

found 6 days ago

Select American Airlines flight, departing Sun, Sep 7 from Denver Intl. to John F. Kennedy Intl., returning Thu, Sep 11, priced at $287 found 6 days ago

Tue, Oct 14 - Wed, Oct 22

COS

Colorado Springs

JFK

John F. Kennedy Intl.

$290 Roundtrip, found 4 days ago

$290

Roundtrip

found 4 days ago

Select Delta flight, departing Tue, Oct 14 from Colorado Springs to John F. Kennedy Intl., returning Wed, Oct 22, priced at $290 found 4 days ago

Sun, Jul 20 - Tue, Jul 22

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$296 Roundtrip, found 5 days ago

$296

Roundtrip

found 5 days ago

Select JetBlue Airways flight, departing Sun, Jul 20 from Denver Intl. to John F. Kennedy Intl., returning Tue, Jul 22, priced at $296 found 5 days ago

Sun, Dec 7 - Mon, Dec 15

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$297 Roundtrip, found 10 hours ago

$297

Roundtrip

found 10 hours ago

Select JetBlue Airways flight, departing Sun, Dec 7 from Denver Intl. to John F. Kennedy Intl., returning Mon, Dec 15, priced at $297 found 10 hours ago

Thu, Jun 26 - Tue, Jul 1

DEN

Denver Intl.

JFK

John F. Kennedy Intl.

$301 Roundtrip, found 1 day ago

$301

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Denver Intl. to John F. Kennedy Intl., returning Tue, Jul 1, priced at $301 found 1 day ago