United Flight 1159 Deals & Information (2026/2027)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 1159 Route Deals From $143

The cheapest prices found with in the last 7 days for return flights were $225 and $143 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Feb 14 - Tue, Feb 17
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$225 Roundtrip, found 5 days ago
$225
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 14 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Tue, Feb 17, priced at $225 found 5 days ago
Thu, Mar 5 - Tue, Mar 10
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$235 Roundtrip, found 5 days ago
$235
Roundtrip
found 5 days ago
Select United flight, departing Thu, Mar 5 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Tue, Mar 10, priced at $235 found 5 days ago
Wed, Apr 1 - Tue, Apr 7
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$247 Roundtrip, found 20 hours ago
$247
Roundtrip
found 20 hours ago
Select United flight, departing Wed, Apr 1 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Tue, Apr 7, priced at $247 found 20 hours ago
Thu, Mar 12 - Mon, Mar 16
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$250 Roundtrip, found 2 days ago
$250
Roundtrip
found 2 days ago
Select United flight, departing Thu, Mar 12 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Mon, Mar 16, priced at $250 found 2 days ago
Sun, Feb 15 - Mon, Feb 23
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$253 Roundtrip, found 4 days ago
$253
Roundtrip
found 4 days ago
Select United flight, departing Sun, Feb 15 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Mon, Feb 23, priced at $253 found 4 days ago
Fri, Mar 20 - Mon, Mar 23
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select United flight, departing Fri, Mar 20 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Mon, Mar 23, priced at $253 found 1 day ago
Fri, Feb 27 - Sat, Mar 7
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$255 Roundtrip, found 1 hour ago
$255
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Feb 27 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Sat, Mar 7, priced at $255 found 1 hour ago
Wed, Apr 8 - Wed, Apr 15
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$257 Roundtrip, found 1 day ago
$257
Roundtrip
found 1 day ago
Select United flight, departing Wed, Apr 8 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Wed, Apr 15, priced at $257 found 1 day ago
Wed, Apr 8 - Wed, Apr 15
IAD
Washington Dulles Intl.
SEA
Seattle - Tacoma Intl.
$261 Roundtrip, found 1 day ago
$261
Roundtrip
found 1 day ago
Select United flight, departing Wed, Apr 8 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Wed, Apr 15, priced at $261 found 1 day ago

Frequently asked questions

What route does flight number UA1159 take?
You'll arrive into SFO from Cancun Intl. Airport (CUN) if you're traveling on flight number UA1159. You'll be in the sky for 5 hours and 41 minutes during this trip. What's more, the flight conveniently travels direct.
How often is UA1159 on time?
United Airlines flight number UA1159 from Cancun Airport to San Francisco, CA Airport (SFO-San Francisco Intl.) lands as scheduled 95% of the time — so you can relax with confidence knowing that you'll arrive at your destination ASAP. If this flight is late, you can expect to wait about 10 minutes. This route has a 4.55-star rating.
What terminal does UA1159 fly out of?
UA1159 runs between CUN and San Francisco Airport, and travelers taking this flight typically depart from Terminal 3.
What kind of plane is on flight number UA1159?
The Boeing 737-900 is the aircraft model usually used for flight UA1159. Typically, this flight heads off from Cancun Intl. Airport (CUN) and touches down at San Francisco, CA Airport (SFO-San Francisco 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 UA1159 flight with Travelocity, please visit our Customer Service Portal.