Compare and book flights with United Airlines

Select journey type

Enter to select travel class and passengers

Check out these low fares for popular routes

from
to
Type
Dates
Price*
Mexico City (MEX)
to San Francisco (SFO)
Roundtrip
Depart: 04/25/2019
Return: 05/09/2019
from$ 399*Viewed: 7 hours ago
Hong Kong (HKG)
to Singapore (SIN)
Roundtrip
Depart: 04/26/2019
Return: 04/29/2019
from$ 1.263*Viewed: 17 hours ago
Las Vegas (LAS)
to San Francisco (SFO)
Roundtrip
Depart: 05/11/2019
Return: 05/18/2019
from$ 117*Viewed: 4 hours ago
Singapore (SIN)
to Hong Kong (HKG)
Roundtrip
Depart: 06/07/2019
Return: 06/09/2019
from$ 1.917*Viewed: 7 hours ago
San Francisco (SFO)
to Las Vegas (LAS)
Roundtrip
Depart: 05/11/2019
Return: 05/18/2019
from$ 117*Viewed: 2 hours ago
San Francisco (SFO)
to Los Angeles (LAX)
Roundtrip
Depart: 05/14/2019
Return: 05/21/2019
from$ 97*Viewed: 2 hours ago
Orlando (MCO)
to New York/Newark (EWR)
Roundtrip
Depart: 05/29/2019
Return: 06/05/2019
from$ 103*Viewed: 4 hours ago
New York/Newark (EWR)
to San Francisco (SFO)
Roundtrip
Depart: 05/11/2019
Return: 05/18/2019
from$ 237*Viewed: 5 hours ago
New York/Newark (EWR)
to Los Angeles (LAX)
Roundtrip
Depart: 07/16/2019
Return: 07/23/2019
from$ 257*Viewed: 5 hours ago
Los Angeles (LAX)
to New York/Newark (EWR)
Roundtrip
Depart: 05/03/2019
Return: 05/10/2019
from$ 260*Viewed: 4 hours ago
Chicago (ORD)
to New York (NYC)
Roundtrip
Depart: 05/07/2019
Return: 05/14/2019
from$ 147*Viewed: 3 hours ago
Los Angeles (LAX)
to Las Vegas (LAS)
Roundtrip
Depart: 04/24/2019
Return: 05/01/2019
from$ 97*Viewed: 4 hours ago
San Francisco (SFO)
to Orlando (MCO)
Roundtrip
Depart: 05/15/2019
Return: 05/29/2019
from$ 217*Viewed: 2 hours ago
Buffalo (BUF)
to New York/Newark (EWR)
Roundtrip
Depart: 05/14/2019
Return: 05/21/2019
from$ 157*Viewed: 6 hours ago
Singapore (SIN)
to San Francisco (SFO)
Roundtrip
Depart: 04/20/2019
Return: 05/10/2019
from$ 908*Viewed: 17 hours ago
Vancouver (YVR)
to San Francisco (SFO)
Roundtrip
Depart: 05/24/2019
Return: 05/26/2019
from$ 324*Viewed: 3 hours ago
San Francisco (SFO)
to San Diego (SAN)
Roundtrip
Depart: 05/15/2019
Return: 05/29/2019
from$ 117*Viewed: 2 hours ago
Los Angeles (LAX)
to Washington, D.C. (IAD)
Roundtrip
Depart: 05/03/2019
Return: 05/10/2019
from$ 267*Viewed: 4 hours ago
San Francisco (SFO)
to Chicago (ORD)
Roundtrip
Depart: 05/11/2019
Return: 05/18/2019
from$ 257*Viewed: 2 hours ago
Jakarta (CGK)
to San Francisco (SFO)
Roundtrip
Depart: 06/10/2019
Return: 06/24/2019
from$ 974*Viewed: 7 hours 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.