| Best option Baltimore Ontario | 09/28/24 1 Stopover (DEN) F92705, F91499 13h 41min | 10/08/24 1 Stopover (DEN) F91262, F92706 19h 31min |  Frontier Airlines |  | $221 Found several days ago | Check | |
| Baltimore Ontario | 09/28/24 1 Stopover (DFW) AA1213, AA2191 07h 02min | 10/08/24 2 Stopovers (PHX, CLT) AA1870, AA0640, AA0934 12h 47min |  American Airlines |  | ? | $346 Found several days ago | Check |
| Baltimore Ontario | 09/28/24 1 Stopover (DEN) UA2624, UA1145 10h 12min | 10/08/24 1 Stopover (DEN) UA2350, UA0745 06h 30min |  United Airlines |  | ? | $457 Found several days ago | Check |
| Baltimore Ontario | 09/28/24 1 Stopover (IAH) UA0451, UA2078 08h 06min | 10/08/24 1 Stopover (SFO) UA5429, UA2423 09h 29min | United Airlines |  | ? | $530 Found several days ago | Check |
| Baltimore Ontario | 07/28/24 1 Stopover (DEN) UA2624, UA2396 10h 23min | 08/15/24 1 Stopover (IAH) UA0722, UA0274 07h 03min | United Airlines | | ? | $635 Found several days ago | Check |
| Baltimore Ontario | 07/28/24 1 Stopover (DEN) UA2624, UA1574 13h 43min | 08/15/24 1 Stopover (DEN) UA2109, UA2334 07h 55min | United Airlines | | ? | $639 Found several days ago | Check |
| Baltimore Ontario | 07/28/24 1 Stopover (DEN) UA2624, UA2396 10h 23min | 08/15/24 1 Stopover (IAH) UA0722, UA0274 07h 03min | United Airlines | | ? | $704 Found several days ago | Check |
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Booking tips
Tips and tricks to help you find cheap flights from Baltimore to Ontario
Favorite airline: Frontier Airlines
40 % of flights from Baltimore to Ontario are booked with Frontier Airlines.
Frontier Airlines
40 %
Delta
20 %
United Airlines
20 %