| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option Baltimore Ontario | Outbound 04/03/26 1 Stopover (ORD) UA0590, UA0658 09h 42min | Return 04/16/26 1 Stopover (DEN) UA2446, UA1362 07h 00min |  United Airlines |  | ? | $438 | |
| Baltimore Ontario | Outbound 04/03/26 1 Stopover (ORD) UA0590, UA0658 09h 42min | Return 04/16/26 1 Stopover (IAH) UA1936, UA1720 07h 02min | United Airlines |  | ? | $448 | |
| Baltimore Ontario | Outbound 03/28/26 2 Stopovers (ATL, SFO) F92509, F91949, F92678 43h 37min | Return 04/25/26 2 Stopovers (DEN, ATL) F91500, F93600, F94712 20h 50min |  Frontier Airlines |  | ? | $539 found 3 days ago | |
| Baltimore Ontario | Outbound 03/28/26 1 Stopover (DFW) AA1213, AA2512 07h 56min | Return 04/25/26 1 Stopover (DFW) AA3136, AA1927 07h 55min |  American Airlines | | ? | $607 found 3 days ago | |
| Baltimore Ontario | Outbound 03/28/26 1 Stopover (ORD) UA0590, UA1851 08h 06min | Return 04/25/26 1 Stopover (IAH) UA1936, UA1720 07h 19min | United Airlines | | ? | $655 found 3 days ago | |
| Baltimore Ontario | Outbound 03/28/26 1 Stopover (DFW) AA1213, AA2512 07h 56min | Return 04/25/26 1 Stopover (DFW) AA2461, AA2251 09h 10min | American Airlines |  | ? | $750 found 3 days ago | |
| Baltimore Ontario | Outbound 03/28/26 1 Stopover (ATL) DL2711, DL0761 09h 22min | Return 04/25/26 1 Stopover (ATL) DL0447, DL0801 09h 30min |  Delta Air Lines |  | ? | $1,722 found 3 days ago |
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 %