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Flights from Guam to Ontario Starting at US$1,420

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • GUM07:25
        19h 50m
        2 stops
        ONT09:15
        Fri, Feb 28|Guam - Ontario|United Airlines
        US$1,420US$4,256
        67% OFF
        67% OFF
        US$4,256US$1,420

        Choose United Airlines flights from Guam to Ontario. The one-way connecting flight with United Airlines departs from Antonio B. Won Pat International Airport on Fri, Feb 28, arriving at Ontario International Airport. One-way Prices start from US$1,420 including taxes and charges.

      • GUM12:30
        19h 20m
        2 stops
        ONT14:50
        Wed, Apr 2|Guam - Ontario|United Airlines
        US$1,438US$4,256
        66% OFF
        66% OFF
        US$4,256US$1,438

        Choose United Airlines flights from Guam to Ontario. The one-way connecting flight with United Airlines departs from Antonio B. Won Pat International Airport on Wed, Apr 2, arriving at Ontario International Airport. One-way Prices start from US$1,438 including taxes and charges.

      • GUM13:00
        18h 50m
        2 stops
        ONT14:50
        Thu, Apr 3|Guam - Ontario|United Airlines
        US$1,464US$4,256
        66% OFF
        66% OFF
        US$4,256US$1,464

        Choose United Airlines flights from Guam to Ontario. The one-way connecting flight with United Airlines departs from Antonio B. Won Pat International Airport on Thu, Apr 3, arriving at Ontario International Airport. One-way Prices start from US$1,464 including taxes and charges.

      • GUM16:50
        42h 14m
        2 stops
        ONT18:04
        Sat, Mar 15|Guam - Ontario|United Airlines
        US$1,465
        US$1,465

        Choose United Airlines flights from Guam to Ontario. The one-way connecting flight with United Airlines departs from Antonio B. Won Pat International Airport on Sat, Mar 15, arriving at Ontario International Airport. One-way Prices start from US$1,465 including taxes and charges.

      • GUM12:30
        19h 20m
        2 stops
        ONT14:50
        Wed, Apr 30|Guam - Ontario|United Airlines
        US$1,490
        US$1,490

        Choose United Airlines flights from Guam to Ontario. The one-way connecting flight with United Airlines departs from Antonio B. Won Pat International Airport on Wed, Apr 30, arriving at Ontario International Airport. One-way Prices start from US$1,490 including taxes and charges.

      • GUM16:50
        43h 41m
        2 stops
        ONT18:31
        Sat, Mar 1|Guam - Ontario|United Airlines
        US$1,492
        US$1,492

        Choose United Airlines flights from Guam to Ontario. The one-way connecting flight with United Airlines departs from Antonio B. Won Pat International Airport on Sat, Mar 1, arriving at Ontario International Airport. One-way Prices start from US$1,492 including taxes and charges.

      • GUM16:50
        34h 4m
        2 stops
        ONT09:54
        Sun, Mar 23|Guam - Ontario|Korean Air
        US$3,193
        US$3,193

        Choose Korean Air flights from Guam to Ontario. The one-way connecting flight with Korean Air departs from Antonio B. Won Pat International Airport on Sun, Mar 23, arriving at Ontario International Airport. One-way Prices start from US$3,193 including taxes and charges.

      • GUM16:50
        35h 4m
        2 stops
        ONT09:54
        Thu, Mar 6|Guam - Ontario|Korean Air
        US$3,204
        US$3,204

        Choose Korean Air flights from Guam to Ontario. The one-way connecting flight with Korean Air departs from Antonio B. Won Pat International Airport on Thu, Mar 6, arriving at Ontario International Airport. One-way Prices start from US$3,204 including taxes and charges.

      • GUM16:50
        34h 4m
        2 stops
        ONT09:54
        Thu, Mar 20|Guam - Ontario|Korean Air
        US$3,225
        US$3,225

        Choose Korean Air flights from Guam to Ontario. The one-way connecting flight with Korean Air departs from Antonio B. Won Pat International Airport on Thu, Mar 20, arriving at Ontario International Airport. One-way Prices start from US$3,225 including taxes and charges.

      • GUM16:50
        34h 4m
        2 stops
        ONT09:54
        Sat, Mar 15|Guam - Ontario|Korean Air
        US$3,230
        US$3,230

        Choose Korean Air flights from Guam to Ontario. The one-way connecting flight with Korean Air departs from Antonio B. Won Pat International Airport on Sat, Mar 15, arriving at Ontario International Airport. One-way Prices start from US$3,230 including taxes and charges.

      • GUM01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        Sat, Mar 1|Guam - Ontario|United Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Guam to Los Angeles flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA151

    United Airlines

    07:10

    GUM

    4.0h

    10:10

    KIX

    SMTWTFS
    Search

  2. UA034

    United Airlines

    18:30

    KIX

    9.0h

    11:30

    SFO

    S-T-TFS

  3. UA5684

    United Airlines

    13:00

    SFO

    1.6h

    14:35

    ONT

    SMTWTFS

  4. UA200

    United Airlines

    07:25

    GUM

    7.3h

    18:40

    HNL

    SMTWTFS
    Search

  5. UA1947

    United Airlines

    14:30

    HNL

    4.1h

    21:35

    SFO

    SMTWTFS

  6. UA5740

    United Airlines

    07:45

    SFO

    1.6h

    09:19

    ONT

    SMTWTFS

  7. UA200

    United Airlines

    07:25

    GUM

    7.3h

    18:40

    HNL

    SMTWTFS
    Search

  8. UA214

    United Airlines

    23:30

    HNL

    4.1h

    06:35

    SFO

    SMTWTFS

  9. UA5740

    United Airlines

    07:45

    SFO

    1.6h

    09:19

    ONT

    SMTWTFS

  10. UA196

    United Airlines

    12:45

    GUM

    3.8h

    15:35

    NRT

    SMTWTFS
    Search

  11. UA838

    United Airlines

    16:50

    NRT

    8.4h

    09:15

    SFO

    SMTWTFS

  12. UA794

    United Airlines

    19:10

    SFO

    1.5h

    20:40

    ONT

    SMTWTFS

  13. UA196

    United Airlines

    12:45

    GUM

    3.8h

    15:35

    NRT

    SMTWTFS
    Search

  14. UA838

    United Airlines

    16:50

    NRT

    8.4h

    09:15

    SFO

    SMTWTFS

  15. UA5684

    United Airlines

    13:00

    SFO

    1.6h

    14:35

    ONT

    SMTWTFS

  16. UA864

    United Airlines

    13:35

    GUM

    3.8h

    16:25

    NRT

    -M-W-FS
    Search

  17. UA838

    United Airlines

    16:50

    NRT

    8.4h

    09:15

    SFO

    SMTWTFS

  18. UA5684

    United Airlines

    13:00

    SFO

    1.6h

    14:35

    ONT

    SMTWTFS

  19. HA5438

    Hawaiian Airlines

    16:25

    GUM

    3.8h

    19:10

    NRT

    SMTWTFS
    Search

  20. HA822

    Hawaiian Airlines

    19:55

    NRT

    7.4h

    08:20

    HNL

    -MTWTFS

  21. HA080

    Hawaiian Airlines

    13:15

    HNL

    5.7h

    21:55

    ONT

    SMTWTFS

  22. UA177

    United Airlines

    16:50

    GUM

    4.0h

    19:50

    KIX

    -M-W-F-
    Search

  23. UA034

    United Airlines

    18:30

    KIX

    9.0h

    11:30

    SFO

    S-T-TFS

  24. UA5587

    United Airlines

    17:00

    SFO

    1.5h

    18:31

    ONT

    SMTWTFS

  25. KE422

    Korean Air

    16:50

    GUM

    4.8h

    20:40

    ICN

    SMTWTFS
    Search

  26. UA806

    United Airlines

    12:45

    ICN

    9.6h

    06:20

    SFO

    SMTWTFS

  27. UA5740

    United Airlines

    07:45

    SFO

    1.6h

    09:19

    ONT

    SMTWTFS
Find more flights and airlines

Find the best time to fly from Guam to Ontario

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

  • When are flight tickets from Guam (GUM) to Ontario (ONT) the cheapest?

    Airlines adjust prices for flights from Guam to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Guam (GUM) to Ontario (ONT) cost?

    According to Trip.com's data, the lowest price is around $2,243.

How to find a cheap flight from Guam to Ontario

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Guam to Ontario. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Guam to Ontario

Off-season for travelSeptember
Peak season for travelNovember
Flight distance15,851.73 km
Popular airlineUnited Airlines

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