United Flight 5566 Deals & Information (2025/2026)

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United Flight 5566 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $179 and $204 for one-way flights to Sacramento Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 22 - Mon, Jan 26
SFO
San Francisco Intl.
SMF
Sacramento Intl.
$179 Roundtrip, found 2 days ago
$179
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 22 from San Francisco Intl. to Sacramento Intl., returning Mon, Jan 26, priced at $179 found 2 days ago
Thu, Aug 14 - Tue, Aug 19
SFO
San Francisco Intl.
SMF
Sacramento Intl.
$181 Roundtrip, found 21 hours ago
$181
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Aug 14 from San Francisco Intl. to Sacramento Intl., returning Tue, Aug 19, priced at $181 found 21 hours ago
Thu, Jan 22 - Mon, Jan 26
SFO
San Francisco Intl.
SMF
Sacramento Intl.
$182 Roundtrip, found 2 days ago
$182
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 22 from San Francisco Intl. to Sacramento Intl., returning Mon, Jan 26, priced at $182 found 2 days ago
Wed, Aug 6 - Thu, Aug 14
SFO
San Francisco Intl.
SMF
Sacramento Intl.
$186 Roundtrip, found 3 days ago
$186
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 6 from San Francisco Intl. to Sacramento Intl., returning Thu, Aug 14, priced at $186 found 3 days ago
Wed, Aug 6 - Thu, Aug 14
SFO
San Francisco Intl.
SMF
Sacramento Intl.
$187 Roundtrip, found 3 days ago
$187
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 6 from San Francisco Intl. to Sacramento Intl., returning Thu, Aug 14, priced at $187 found 3 days ago
Thu, Aug 14 - Tue, Aug 19
SFO
San Francisco Intl.
SMF
Sacramento Intl.
$211 Roundtrip, found 21 hours ago
$211
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Aug 14 from San Francisco Intl. to Sacramento Intl., returning Tue, Aug 19, priced at $211 found 21 hours ago
Thu, Jan 22 - Mon, Jan 26
SFO
San Francisco Intl.
SMF
Sacramento Intl.
$212 Roundtrip, found 2 days ago
$212
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 22 from San Francisco Intl. to Sacramento Intl., returning Mon, Jan 26, priced at $212 found 2 days ago
Thu, Aug 14 - Tue, Aug 19
SFO
San Francisco Intl.
SMF
Sacramento Intl.
$226 Roundtrip, found 21 hours ago
$226
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Aug 14 from San Francisco Intl. to Sacramento Intl., returning Tue, Aug 19, priced at $226 found 21 hours ago

Frequently asked questions

What route does flight number UA5566 take?
UA5566 flies directly from DFW Airport to San Francisco Airport in around 3 hours and 52 minutes. It can sometimes take other routes though, some of which may be multi-stop journeys. Keep this in mind when booking your seat to avoid any confusion.
What terminal does UA5566 fly out of?
Terminal E is the terminal you'll likely depart from if you're booked on a flight out of DFW. Dallas-Fort Worth Intl. Airport (DFW) to SFO is the most commonly traveled route for flight number UA5566.
What kind of plane is on flight number UA5566?
If you've booked a seat on flight UA5566 from Dallas-Fort Worth Intl. Airport (DFW) to SFO, there's every chance you'll be on board the Embraer 175. Flight UA5566 serves many routes, but this is the busiest.
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 UA5566 flight with Travelocity, please visit our Customer Service Portal.