₩145,600 Cheap flights from Riverside, CA

View ₩145,600 flight on Tue, Jun 2, 2026Opens in a new window

Popular airlines from Riverside

  • Alaska Airlines

  • United

  • American Airlines

  • Delta

  • Frontier Airlines

  • Southwest Airlines

  • JetBlue Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest flights from Riverside

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, May 19 - Tue, Jun 2
ONT
Ontario
PDX
Portland
₩258,100 Roundtrip, found 5 days ago
₩258,100
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, May 19 from Ontario to Portland, returning Tue, Jun 2, priced at ₩258,100 found 5 days ago
Delta
Tue, May 19 - Mon, Jun 1
ONT
Ontario
PDX
Portland
₩281,800 Roundtrip, found 5 days ago
₩281,800
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, May 19 from Ontario to Portland, returning Mon, Jun 1, priced at ₩281,800 found 5 days ago
Delta
Tue, Jun 2 - Tue, Jun 9
ONT
Ontario
DEN
Denver
₩291,100 Roundtrip, found 4 days ago
₩291,100
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Jun 2 from Ontario to Denver, returning Tue, Jun 9, priced at ₩291,100 found 4 days ago
Delta
Tue, May 19 - Fri, Jun 5
ONT
Ontario
PDX
Portland
₩296,500 Roundtrip, found 5 days ago
₩296,500
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, May 19 from Ontario to Portland, returning Fri, Jun 5, priced at ₩296,500 found 5 days ago
United
Wed, Jun 10 - Wed, Jun 17
ONT
Ontario
DEN
Denver
₩306,700 Roundtrip, found 2 days ago
₩306,700
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jun 10 from Ontario to Denver, returning Wed, Jun 17, priced at ₩306,700 found 2 days ago
Delta
Mon, Aug 3 - Tue, Aug 4
LGB
Long Beach
DEN
Denver
₩321,100 Roundtrip, found 3 days ago
₩321,100
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Aug 3 from Long Beach to Denver, returning Tue, Aug 4, priced at ₩321,100 found 3 days ago
United
Tue, Jun 2 - Tue, Jun 9
ONT
Ontario
DEN
Denver
₩335,800 Roundtrip, found 4 days ago
₩335,800
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jun 2 from Ontario to Denver, returning Tue, Jun 9, priced at ₩335,800 found 4 days ago
Delta
Mon, Aug 3 - Tue, Aug 4
LGB
Long Beach
DEN
Denver
₩336,000 Roundtrip, found 3 days ago
₩336,000
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Aug 3 from Long Beach to Denver, returning Tue, Aug 4, priced at ₩336,000 found 3 days ago
Alaska Airlines
Tue, Oct 6 - Wed, Oct 7
ONT
Ontario
AUS
Austin
₩408,900 Roundtrip, found 1 day ago
₩408,900
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Oct 6 from Ontario to Austin, returning Wed, Oct 7, priced at ₩408,900 found 1 day ago
American Airlines
Sat, Sep 19 - Sat, Sep 26
ONT
Ontario
PDX
Portland
₩438,500 Roundtrip, found 18 hours ago
₩438,500
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Sat, Sep 19 from Ontario to Portland, returning Sat, Sep 26, priced at ₩438,500 found 18 hours ago

Travel information

Flights from Riverside: Essential Travel Information

Cheapest flight from Riverside
₩258,100 (roundtrip)
Best airlines to fly from Riverside
Delta, United, American Airlines, Alaska Airlines
Cheapest month to fly from Riverside
May
Riverside IATA code
QLA
Riverside Country/State
California
Airline ticket deals from Riverside
₩258,100 - ₩438,500

 

*Available to Expedia members.