United Flight UA1687 Deals & Information (2025/2026)

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United Flight 1687 Route Deals From $157

The cheapest prices found with in the last 7 days for return flights were $309 and $157 for one-way flights to George Bush Intercontinental for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jul 1 - Wed, Jul 2
SFO
San Francisco Intl.
IAH
George Bush Intercontinental
$309 Roundtrip, just found
$309
Roundtrip
just found
Select United flight, departing Tue, Jul 1 from San Francisco Intl. to George Bush Intercontinental, returning Wed, Jul 2, priced at $309 just found

Frequently asked questions

What route does flight number UA1687 take?
Flight number UA1687 operates straight from Portland Intl. Airport (PDX) to SFO. During this trip, expect to be in the air for about 1 hour and 45 minutes. Consider booking ahead to get your preferred seat.
What kind of plane is on flight number UA1687?
There’s every chance you’ll be stepping on board an Airbus A319 if you’re on flight UA1687. This flight usually sets off from Portland, OR Airport (PDX-Portland Intl.) and arrives at San Francisco Intl. Airport (SFO).
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 UA1687 flight with Travelocity, please visit our Customer Service Portal.