Flights Montréal → San Antonio
As of November 2026, economy flights from Montréal to San Antonio have a typical range CAD 1120–3205, median CAD 1675. Full range across all 229 offers: CAD 900–5177. We analyzed 229 offers from 6 airlines in a single price check.
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: Montréal → San Antonio
Based on 229 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Montréal → San Antonio
Add-on pricing from the cheapest available offer per airline · November 2026 · CAD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Delta | Included | CAD 73 | — |
| United Airlines | — | CAD 92 | — |
| United | — | CAD 101 | — |
| Air Canada | — | CAD 30 | — |
| WestJet | Included | CAD 30 | — |
| American Airlines | Included | CAD 35 | — |
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 Montréal to San Antonio cost?
Based on 229 offers · November 2026
Montréal to San Antonio flights ranged from CAD 900 to CAD 5177 across 229 offers analyzed in November 2026. The chart below shows how prices distributed across all 229 offers.
These 229 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 CAD 1326 and CAD 2523
What hidden fees do Montréal to San Antonio flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Montréal to San Antonio routes. The breakdown below is based on 229 offers analyzed in November 2026.
| Carrier | Avg fee (CAD) | % of base fare |
|---|---|---|
| DL | 45 | 2% |
| UA | 47 | 3% |
| United | 101 | 9% |
| AC | 34 | 2% |
| WS | 42 | 3% |
| AA | 45 | 3% |
United: base ~CAD 1017 + fees CAD 101 = ~CAD 1118 total. Air Canada: base ~CAD 1776 + fees CAD 34 = ~CAD 1810 total.
United's CAD 101 ancillary fees narrow the gap with Air Canada's lower-fee model — the CAD 759 base difference shrinks to CAD 692 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.United charges 2.9x more in ancillary fees than AC on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Montréal to San Antonio?
6 airlines flew Montréal to San Antonio in this dataset. 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.
Even on the cheapest airline (United), fares ranged CAD 1009–1118 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (CAD) | Median (CAD) | Fees (CAD) |
|---|---|---|---|---|
 United | 10 | 1009–1118 | 1118 | 101 (9%) |
 WestJet | 19 | 1145–1523 | 1196 | 42 (4%) |
 American Airlines | 33 | 1351–1752 | 1446 | 45 (3%) |
 United Airlines | 49 | 1163–2386 | 1810 | 47 (3%) |
 Air Canada | 82 | 1161–3205 | 1810 | 34 (2%) |
 Delta Air Lines | 36 | 1174–3632 | 2799 | 45 (2%) |
Where do the best Montréal → San Antonio prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search 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: Montréal to San Antonio flights
- Full-service carriers on Montréal–San Antonio cost 1.5x more than budget airlines (CAD 1797 vs CAD 1196 median; overall median CAD 1675).
- United charges 2.9x more in ancillary fees than AC — CAD 101 vs CAD 34 avg per booking.
- The same route priced CAD 1098 apart depending on where it was booked — the lowest median was CAD 1101. 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 Montréal to San Antonio cost?
- Based on 229 offers analyzed, Montréal to San Antonio flights range from CAD 900 to CAD 5177, with a median price of CAD 1675. Search for your specific dates →
- What hidden fees should I expect on Montréal to San Antonio flights?
- On average, ancillary fees (bags, seat selection) add CAD 44 to the base fare on Montréal to San Antonio flights. See itemized fees for your itinerary →
- Which airline is cheapest on Montréal to San Antonio including all fees?
- United has the lowest median fare on Montréal to San Antonio at CAD 1118 (median across 10 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Montréal–San Antonio 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 CAD 1101. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Montréal to San Antonio routes?
- Montréal to San Antonio has 6 airlines competing, creating a price range from CAD 900 to CAD 5177 across 229 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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