United Flight UA3687 Deals & Information (2025/2026)

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United Flight 3687 Route Deals From $234

The cheapest prices found with in the last 7 days for return flights were $229 and $234 for one-way flights to Key West Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 7 - Fri, Dec 19
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$229 Roundtrip, found 3 days ago
$229
Roundtrip
found 3 days ago
Select United flight, departing Sun, Dec 7 from Newark Liberty Intl. Airport to Key West Intl., returning Fri, Dec 19, priced at $229 found 3 days ago
Wed, Oct 29 - Mon, Nov 3
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$234 Roundtrip, found 6 days ago
$234
Roundtrip
found 6 days ago
Select United flight, departing Wed, Oct 29 from Newark Liberty Intl. Airport to Key West Intl., returning Mon, Nov 3, priced at $234 found 6 days ago
Sun, Dec 7 - Fri, Dec 19
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$239 Roundtrip, found 3 days ago
$239
Roundtrip
found 3 days ago
Select United flight, departing Sun, Dec 7 from Newark Liberty Intl. Airport to Key West Intl., returning Fri, Dec 19, priced at $239 found 3 days ago
Wed, Jul 8 - Mon, Jul 13
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$256 Roundtrip, found 1 day ago
$256
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jul 8 from Newark Liberty Intl. Airport to Key West Intl., returning Mon, Jul 13, priced at $256 found 1 day ago
Sun, Dec 7 - Fri, Dec 19
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$265 Roundtrip, found 3 days ago
$265
Roundtrip
found 3 days ago
Select United flight, departing Sun, Dec 7 from Newark Liberty Intl. Airport to Key West Intl., returning Fri, Dec 19, priced at $265 found 3 days ago
Wed, Jul 8 - Mon, Jul 13
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jul 8 from Newark Liberty Intl. Airport to Key West Intl., returning Mon, Jul 13, priced at $266 found 1 day ago
Sun, Dec 7 - Fri, Dec 19
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$269 Roundtrip, found 3 days ago
$269
Roundtrip
found 3 days ago
Select United flight, departing Sun, Dec 7 from Newark Liberty Intl. Airport to Key West Intl., returning Fri, Dec 19, priced at $269 found 3 days ago
Wed, Sep 24 - Mon, Sep 29
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$270 Roundtrip, found 20 hours ago
$270
Roundtrip
found 20 hours ago
Select United flight, departing Wed, Sep 24 from Newark Liberty Intl. Airport to Key West Intl., returning Mon, Sep 29, priced at $270 found 20 hours ago
Sat, Nov 15 - Wed, Nov 19
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$281 Roundtrip, found 4 days ago
$281
Roundtrip
found 4 days ago
Select United flight, departing Sat, Nov 15 from Newark Liberty Intl. Airport to Key West Intl., returning Wed, Nov 19, priced at $281 found 4 days ago
Mon, Mar 16 - Fri, Mar 27
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$288 Roundtrip, found 1 day ago
$288
Roundtrip
found 1 day ago
Select United flight, departing Mon, Mar 16 from Newark Liberty Intl. Airport to Key West Intl., returning Fri, Mar 27, priced at $288 found 1 day ago
Mon, Mar 16 - Fri, Mar 27
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$298 Roundtrip, found 1 day ago
$298
Roundtrip
found 1 day ago
Select United flight, departing Mon, Mar 16 from Newark Liberty Intl. Airport to Key West Intl., returning Fri, Mar 27, priced at $298 found 1 day ago
Sun, Dec 7 - Fri, Dec 19
EWR
Newark Liberty Intl. Airport
EYW
Key West Intl.
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select United flight, departing Sun, Dec 7 from Newark Liberty Intl. Airport to Key West Intl., returning Fri, Dec 19, priced at $309 found 3 days ago

Frequently asked questions

What route does flight number UA3687 take?
UA3687 operates between EWR and PIT and is a direct flight. This trip usually takes 1 hour and 26 minutes.
How often is UA3687 on time?
For passengers flying with United Airlines flight number UA3687 from Newark Airport to PIT, 92% of these journeys touch down according to schedule. In the rare event of a delay, expect a wait time of approximately 15 minutes on average. Thanks to the airline's high standards, this trip has a star rating of 4.5.
What terminal does UA3687 fly out of?
Direct flights between Newark Airport and Pittsburgh, PA Airport (PIT-Pittsburgh Intl.) are served by UA3687, and passengers who travel on this route normally take off from Terminal C.
What kind of plane is on flight number UA3687?
The Embraer 170 is the kind of plane predominantly used for flight UA3687. This flight almost always takes off from Newark Airport and comes in to land at Pittsburgh, PA Airport (PIT-Pittsburgh Intl.).
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA3687 flight with Travelocity, please visit our Customer Service Portal.