App
Help
USD
Search Bookings
Trip.com
>
Flights
>
Flights to Washington D.C.
>
Ontario to Washington D.C. flight
>
Ontario to Ronald Reagan Washington National Airport flight
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap Flights from Ontario to Ronald Reagan Washington National Airport

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • ONT00:59
        8h 1m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Tue, May 7|Frontier Airlines
        US$46US$78
        41% OFF
        41% OFF
        US$78US$46
      • ONT00:59
        8h 1m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Wed, May 1|Frontier Airlines
        US$47US$78
        40% OFF
        40% OFF
        US$78US$47
      • ONT00:59
        8h 1m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Tue, Apr 30|Frontier Airlines
        US$47US$78
        40% OFF
        40% OFF
        US$78US$47
      • ONT00:55
        8h 5m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Sat, May 4|Frontier Airlines
        US$47
        US$47
      • ONT00:59
        14h 8m
        1 stop
        DCA18:07
        Ontario - Washington D.C.|Sat, May 18|Frontier Airlines
        US$49
        US$49
      • ONT09:05
        23h 58m
        1 stop
        DCA12:03
        Ontario - Washington D.C.|Mon, May 20|Frontier Airlines
        US$51
        US$51
      • ONT00:59
        18h
        1 stop
        DCA21:59
        Ontario - Washington D.C.|Tue, May 14|Frontier Airlines
        US$53
        US$53
      • ONT00:59
        8h 1m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Sun, May 5|Frontier Airlines
        US$53
        US$53
      • ONT00:59
        8h 1m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Sun, May 12|Frontier Airlines
        US$57
        US$57
      • ONT00:56
        8h 4m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Fri, May 3|Frontier Airlines
        US$58
        US$58
      • ONT13:00
        3h 5m
        Direct
        DCA14:00
        Ontario - Washington D.C.|Sat, May 4|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.

Selected Airlines from Ontario to Ronald Reagan Washington National Airport
Frontier Airlines
From US$46
Delta Air Lines
From US$125
Southwest Airlines
From US$162
United Airlines
From US$178
American Airlines
From US$208
Alaska Airlines
From US$265
ANA airlines
Find more flights and airlines

There are 1 airport(s) in Ontario. Discover the top routes now!

  • 12517.03 km from downtown Ontario
    Ontario International Airport
    Tickets From
    US$46
Flight Schedule from Ontario to Ronald Reagan Washington National Airport
Flight info.
Departure
Arrival
Weekly Schedule

  1. F91262

    Frontier Airlines

    00:59

    ONT

    2.4h

    04:23

    DEN

    SMTWTFS
    Search

  2. F93982

    Frontier Airlines

    16:35

    DEN

    3.4h

    21:59

    DCA

    S-TWTF-

  3. F91262

    Frontier Airlines

    00:59

    ONT

    2.4h

    04:23

    DEN

    SMTWTFS
    Search

  4. F9690

    Frontier Airlines

    16:27

    DEN

    3.5h

    21:59

    DCA

    -M----S

  5. F91262

    Frontier Airlines

    00:59

    ONT

    2.4h

    04:23

    DEN

    SMTWTFS
    Search

  6. F9686

    Frontier Airlines

    06:39

    DEN

    3.5h

    12:09

    DCA

    SMTWTFS

  7. F91262

    Frontier Airlines

    00:59

    ONT

    2.4h

    04:23

    DEN

    SMTWTFS
    Search

  8. F9688

    Frontier Airlines

    12:39

    DEN

    3.5h

    18:09

    DCA

    S--WT-S

  9. F91500

    Frontier Airlines

    07:31

    ONT

    2.3h

    10:51

    DEN

    SMTWTFS
    Search

  10. F9688

    Frontier Airlines

    12:39

    DEN

    3.5h

    18:09

    DCA

    S--WT-S

  11. F91500

    Frontier Airlines

    07:31

    ONT

    2.3h

    10:51

    DEN

    SMTWTFS
    Search

  12. F9686

    Frontier Airlines

    06:39

    DEN

    3.5h

    12:09

    DCA

    SMTWTFS

  13. F91284

    Frontier Airlines

    12:29

    ONT

    1.1h

    13:38

    LAS

    SMTWT-S
    Search

  14. F94968

    Frontier Airlines

    22:59

    LAS

    2.1h

    02:07

    DEN

    SMTWTFS

  15. F93982

    Frontier Airlines

    16:35

    DEN

    3.4h

    21:59

    DCA

    S-TWTF-

  16. F93210

    Frontier Airlines

    22:56

    ONT

    1.2h

    00:10

    LAS

    SMTWTFS
    Search

  17. F92430

    Frontier Airlines

    12:53

    LAS

    2.3h

    16:11

    DEN

    SMTWTFS

  18. F9690

    Frontier Airlines

    16:27

    DEN

    3.5h

    21:59

    DCA

    -M----S
Find more flights and airlines

Flight Info of Flights from Ontario to Ronald Reagan Washington National Airport

Cheapest round-trip ticket price

$160

Cheapest nonstop flight price

$46

Off-season for travel

April

Peak season for travel

July

FAQs for Ontario to Ronald Reagan Washington National Airport Flights

  • When are flight tickets from Ontario (ONT) to Washington D.C. (WAS) the cheapest?

    Airlines adjust prices for flights from Ontario to Washington D.C. 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 Ontario (ONT) to Washington D.C. (WAS) cost?

    According to Trip.com's data, the lowest price is around $347.

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2024 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.