Flights Ontario → Boston
As of November 2026, economy flights from Ontario to Boston have a typical range USD 604–1332, median USD 610. Full range across all 370 offers: USD 604–2177. We found 27% of 370 offers from budget carriers (around USD 610) and 73% from full-service carriers (around USD 610).
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Ontario → Boston
Based on 370 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Ontario → Boston
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| American Airlines | — | — | — |
| United | — | — | — |
| Delta | — | — | — |
| Southwest Airlines | — | — | — |
| American | — | USD 110 | — |
| United | — | USD 100 | — |
| Southwest | — | USD 90 | — |
| Alaska Airlines | — | — | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Ontario to Boston cost?
Based on 370 offers · November 2026
Ontario to Boston flights ranged from USD 604 to USD 2177 across 370 offers analyzed in November 2026. Two fare clusters detected: budget fares around 1155 and premium fares around 1626 The chart below shows how prices distributed across all 370 offers.
These 370 offers (November 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 604 and USD 878
What hidden fees do Ontario to Boston flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Ontario to Boston routes. The breakdown below is based on 370 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| AA | 10 | 2% |
| UA | 10 | 2% |
| DL | 10 | 1% |
| WN | 0 | 0% |
| American | 110 | 18% |
| United | 100 | 17% |
| Southwest | 90 | 15% |
| AS | 10 | 1% |
American: base ~USD 495 + fees USD 110 = ~USD 605 total. United Airlines: base ~USD 600 + fees USD 10 = ~USD 610 total.
American's USD 110 ancillary fees narrow the gap with United Airlines's lower-fee model — the USD 105 base difference shrinks to USD 5 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Ontario to Boston?
8 airlines flew Ontario to Boston in this dataset. The route shows a clear split between low-cost and full-service carriers. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 American | 2 | — | 605 | 110 (18%) |
 United | 6 | — | 605 | 100 (17%) |
 Southwest | 1 | — | 605 | 90 (15%) |
 United Airlines | 90 | 604–719 | 610 | 10 (2%) |
 Southwest Airlines | 20 | 604–611 | 610 | 0 (0%) |
 American Airlines | 104 | 604–746 | 663 | 10 (2%) |
 Alaska Airlines | 20 | 660–1095 | 706 | 10 (1%) |
 Delta Air Lines | 127 | 604–1606 | 1224 | 10 (1%) |
Where do the best Ontario → Boston prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Ontario to Boston flights
- Full-service carriers on Ontario–Boston cost 1.2x more than budget airlines (USD 736 vs USD 608 median; overall median USD 610).
- American charges 11.0x more in ancillary fees than AS — USD 110 vs USD 10 avg per booking.
- The same route priced USD 11 apart depending on where it was booked — the lowest median was USD 605. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Ontario to Boston cost?
- Based on 370 offers analyzed, Ontario to Boston flights range from USD 604 to USD 2177, with a median price of USD 610. Search for your specific dates →
- What hidden fees should I expect on Ontario to Boston flights?
- On average, ancillary fees (bags, seat selection) add USD 12 to the base fare on Ontario to Boston flights. See itemized fees for your itinerary →
- Which airline is cheapest on Ontario to Boston including all fees?
- American has the lowest median fare on Ontario to Boston at USD 605 (median across 2 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Ontario–Boston flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 605. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Ontario to Boston routes?
- Ontario to Boston has 8 airlines competing, creating a price range from USD 604 to USD 2177 across 370 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
8 airlines, two price clusters — find which fits your budget
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