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Cheap flight deals from San Diego to Ontario Starting at NZD 74

Whether you’re going for a one-way or round-trip to Ontario, we’ve got you covered! Check out these different flight options from San Diego below.

  • One way
  • Round-trip
      • SAN14:48
        5h 47m
        1 stop
        ONT20:35
        Thu, Feb 27|San Diego - Ontario|Frontier Airlines
        NZD 74NZD 195
        62% OFF
        62% OFF
        NZD 195NZD 74

        Choose Frontier Airlines flights from San Diego to Ontario. The one-way connecting flight with Frontier Airlines departs from San Diego International Airport on Thu, Feb 27, arriving at Ontario International Airport. One-way Prices start from NZD 74 including taxes and charges.

      • SAN14:48
        5h 47m
        1 stop
        ONT20:35
        Thu, Feb 20|San Diego - Ontario|Frontier Airlines
        NZD 84NZD 195
        56% OFF
        56% OFF
        NZD 195NZD 84

        Choose Frontier Airlines flights from San Diego to Ontario. The one-way connecting flight with Frontier Airlines departs from San Diego International Airport on Thu, Feb 20, arriving at Ontario International Airport. One-way Prices start from NZD 84 including taxes and charges.

      • SAN06:25
        9h 14m
        1 stop
        ONT15:39
        Thu, May 1|San Diego - Ontario|Frontier Airlines
        NZD 85NZD 195
        56% OFF
        56% OFF
        NZD 195NZD 85

        Choose Frontier Airlines flights from San Diego to Ontario. The one-way connecting flight with Frontier Airlines departs from San Diego International Airport on Thu, May 1, arriving at Ontario International Airport. One-way Prices start from NZD 85 including taxes and charges.

      • SAN14:28
        6h 4m
        1 stop
        ONT20:32
        Sun, Feb 16|San Diego - Ontario|Frontier Airlines
        NZD 133
        NZD 133

        Choose Frontier Airlines flights from San Diego to Ontario. The one-way connecting flight with Frontier Airlines departs from San Diego International Airport on Sun, Feb 16, arriving at Ontario International Airport. One-way Prices start from NZD 133 including taxes and charges.

      • SAN08:23
        12h 22m
        1 stop
        ONT20:45
        Mon, Mar 10|San Diego - Ontario|Alaska Airlines
        NZD 137
        NZD 137

        Choose Alaska Airlines flights from San Diego to Ontario. The one-way connecting flight with Alaska Airlines departs from San Diego International Airport on Mon, Mar 10, arriving at Ontario International Airport. One-way Prices start from NZD 137 including taxes and charges.

      • SAN10:24
        10h 16m
        1 stop
        ONT20:40
        Wed, Feb 26|San Diego - Ontario|Alaska Airlines
        NZD 140
        NZD 140

        Choose Alaska Airlines flights from San Diego to Ontario. The one-way connecting flight with Alaska Airlines departs from San Diego International Airport on Wed, Feb 26, arriving at Ontario International Airport. One-way Prices start from NZD 140 including taxes and charges.

      • SAN10:24
        8h 7m
        1 stop
        ONT18:31
        Tue, Mar 4|San Diego - Ontario|Alaska Airlines
        NZD 142
        NZD 142

        Choose Alaska Airlines flights from San Diego to Ontario. The one-way connecting flight with Alaska Airlines departs from San Diego International Airport on Tue, Mar 4, arriving at Ontario International Airport. One-way Prices start from NZD 142 including taxes and charges.

      • SAN06:15
        16h 30m
        1 stop
        ONT22:45
        Sat, Mar 8|San Diego - Ontario|Alaska Airlines
        NZD 147
        NZD 147

        Choose Alaska Airlines flights from San Diego to Ontario. The one-way connecting flight with Alaska Airlines departs from San Diego International Airport on Sat, Mar 8, arriving at Ontario International Airport. One-way Prices start from NZD 147 including taxes and charges.

      • SAN06:15
        16h 30m
        1 stop
        ONT22:45
        Wed, Mar 12|San Diego - Ontario|Hawaiian Airlines
        NZD 147
        NZD 147

        Choose Hawaiian Airlines flights from San Diego to Ontario. The one-way connecting flight with Hawaiian Airlines departs from San Diego International Airport on Wed, Mar 12, arriving at Ontario International Airport. One-way Prices start from NZD 147 including taxes and charges.

      • SAN06:15
        13h 24m
        1 stop
        ONT19:39
        Sat, Feb 22|San Diego - Ontario|Spirit Airlines
        NZD 149
        NZD 149

        Choose Spirit Airlines flights from San Diego to Ontario. The one-way connecting flight with Spirit Airlines departs from San Diego International Airport on Sat, Feb 22, arriving at Ontario International Airport. One-way Prices start from NZD 149 including taxes and charges.

      • SAN01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        Sat, Feb 22|San Diego - Ontario|Frontier Airlines
        Find More Flights
        Find More Flights

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

San Diego to Los Angeles flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. F91326

    Frontier Airlines

    06:25

    SAN

    1.5h

    07:55

    LAS

    -M---FS
    Search

  2. F91357

    Frontier Airlines

    12:05

    LAS

    1.2h

    13:16

    ONT

    S-TWTFS

  3. DL3807

    Delta Air Lines

    07:00

    SAN

    1.4h

    08:27

    LAS

    SMTWTFS
    Search

  4. F91357

    Frontier Airlines

    12:05

    LAS

    1.2h

    13:16

    ONT

    S-TWTFS

  5. DL2530

    Delta Air Lines

    07:00

    SAN

    3.2h

    10:11

    SEA

    SMTWTFS
    Search

  6. DL4031

    Delta Air Lines

    14:35

    SEA

    2.6h

    17:14

    ONT

    SMTWTFS

  7. WN1256

    Southwest Airlines

    08:55

    SAN

    1.3h

    10:15

    LAS

    -M-W---
    Search

  8. F91357

    Frontier Airlines

    12:05

    LAS

    1.2h

    13:16

    ONT

    S-TWTFS

  9. WN4417

    Southwest Airlines

    09:45

    SAN

    1.4h

    11:10

    LAS

    S-T-T-S
    Search

  10. F91357

    Frontier Airlines

    12:05

    LAS

    1.2h

    13:16

    ONT

    S-TWTFS

  11. AS2058

    Alaska Airlines

    10:25

    SAN

    1.7h

    12:06

    SFO

    SMTWTFS
    Search

  12. UA794

    United Airlines

    19:05

    SFO

    1.5h

    20:34

    ONT

    SMTWTFS

  13. AS2058

    Alaska Airlines

    10:25

    SAN

    1.7h

    12:06

    SFO

    SMTWTFS
    Search

  14. UA5587

    United Airlines

    17:00

    SFO

    1.5h

    18:31

    ONT

    SMTWTFS

  15. WN2222

    Southwest Airlines

    10:30

    SAN

    1.5h

    12:00

    SJC

    -MTW---
    Search

  16. WN1788

    Southwest Airlines

    14:10

    SJC

    1.3h

    15:30

    ONT

    SMTWTFS

  17. UA2381

    United Airlines

    13:40

    SAN

    1.8h

    15:25

    SFO

    SMTWTFS
    Search

  18. UA794

    United Airlines

    19:05

    SFO

    1.5h

    20:34

    ONT

    SMTWTFS

  19. F91466

    Frontier Airlines

    14:37

    SAN

    1.5h

    16:08

    LAS

    ---W-F-
    Search

  20. F91357

    Frontier Airlines

    12:05

    LAS

    1.2h

    13:16

    ONT

    S-TWTFS
Find more flights and airlines

When is the cheapest time to fly from San Diego to Ontario?

These price trend charts carefully monitor and predict how flight prices from San Diego to Ontario will change. Keep a close eye on them to understand when the best time to buy your tickets is.

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

Frequently Asked Questions

  • When are flight tickets from San Diego (SAN) to Ontario (ONT) the cheapest?

    Airlines adjust prices for flights from San Diego to Ontario based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from San Diego (SAN) to Ontario (ONT) cost?

    According to Trip.com's data, the lowest price is around NZD 531.

  • What's the most popular airline for non-stop flights from San Diego (SAN) to Ontario (ONT)?

    United Airlines operates 1 non-stop flights from San Diego (SAN) to Ontario (ONT).

How to find a cheap flight from San Diego to Ontario

If you don’t know some of the key things to look out for when buying flight tickets, prices can often end up sky high or, worse, sold out! We’ve carefully compiled our six most important steps to help ensure you’re getting the best deals when planning your next journey.
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 Info | San Diego to Ontario

Cheapest direct flight priceNZD 74
Cheapest return ticket priceNZD 559
Off-season for travelDecember
Peak season for travelNovember
Flight distance12,520.52 km
Popular airlineUnited Airlines

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