Book United Boston to Key West flight deals from $372

Select journey type






Enter to select travel class and passengers

  1. Home
  2. United flights
  3. To the United States
  4. To Key West
  5. Boston - Key West

Search flights from Boston to Key West (BOS - EYW)

August

Skip to content

Tuesday 14th

Return Wednesday 29th
from$ 372*Viewed: 32 minutes ago

Monday 27th

Return Tuesday 11th
from$ 395*Viewed: 32 minutes ago

Tuesday 28th

Return Wednesday 12th
from$ 372*Viewed: 32 minutes ago

September

Skip to content

Tuesday 4th

Return Wednesday 19th
from$ 372*Viewed: 32 minutes ago

Tuesday 11th

Return Wednesday 26th
from$ 372*Viewed: 32 minutes ago

Tuesday 18th

Return Wednesday 3rd
from$ 372*Viewed: 31 minutes ago

October

Skip to content

Monday 1st

Return Tuesday 16th
from$ 395*Viewed: 31 minutes ago

Tuesday 2nd

Return Wednesday 17th
from$ 372*Viewed: 31 minutes ago

Tuesday 9th

Return Wednesday 24th
from$ 391*Viewed: 31 minutes ago
**Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply..
A dock leads into turquoise waters off a white sandy beach in Key West

Plan ahead for flights from Boston to Key West

from
to
Type
Dates
Price*
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Tue 14 Aug 2018
Return Wed 29 Aug 2018
from$ 372*Viewed: 32 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Tue 28 Aug 2018
Return Wed 12 Sep 2018
from$ 372*Viewed: 32 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Tue 4 Sep 2018
Return Wed 19 Sep 2018
from$ 372*Viewed: 32 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Tue 11 Sep 2018
Return Wed 26 Sep 2018
from$ 372*Viewed: 32 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Tue 18 Sep 2018
Return Wed 3 Oct 2018
from$ 372*Viewed: 31 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Tue 25 Sep 2018
Return Wed 10 Oct 2018
from$ 372*Viewed: 31 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Tue 2 Oct 2018
Return Wed 17 Oct 2018
from$ 372*Viewed: 31 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Fri 21 Sep 2018
Return Sat 6 Oct 2018
from$ 391*Viewed: 31 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Fri 28 Sep 2018
Return Sat 13 Oct 2018
from$ 391*Viewed: 31 minutes ago
Boston (BOS)
to Key West (EYW)
Roundtrip
Depart Tue 9 Oct 2018
Return Wed 24 Oct 2018
from$ 391*Viewed: 31 minutes ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Key West

89 °FMonday07/16/2018
87 °FTuesday07/17/2018
84 °FWednesday07/18/2018
87 °FThursday07/19/2018
87 °FFriday07/20/2018
88 °FSaturday07/21/2018
84 °FSunday07/22/2018
Powered by: OpenWeatherMap.org