Flights Buffalo → Chicago
As of August 2026, economy flights from Buffalo to Chicago have a typical range USD 407–516, median USD 490. Full range across all 170 offers: USD 405–605. We found 26% of 170 offers from budget carriers (around USD 481) and 74% from full-service carriers (around USD 490).
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: Buffalo → Chicago
Based on 170 offers · August 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Buffalo → Chicago
Add-on pricing from the cheapest available offer per airline · August 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Southwest | Included | USD 90 | — |
| American Airlines | Included | USD 110 | — |
| United Airlines | — | USD 80 | — |
| SY | — | — | — |
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 Buffalo to Chicago cost?
Based on 170 offers · August 2026
Buffalo to Chicago flights ranged from USD 405 to USD 605 across 170 offers analyzed in August 2026. Two fare clusters detected: budget fares around 415 and premium fares around 495 The chart below shows how prices distributed across all 170 offers.
These 170 offers (August 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 481 and USD 491
What hidden fees do Buffalo to Chicago flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Buffalo to Chicago routes. The breakdown below is based on 170 offers analyzed in August 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| WN | 90 | 18% |
| AA | 120 | 25% |
| UA | 82 | 16% |
| SY | 15 | 2% |
American Airlines: base ~USD 371 + fees USD 120 = ~USD 491 total. Sun Country Airlines: base ~USD 590 + fees USD 15 = ~USD 605 total.
American Airlines's USD 120 ancillary fees narrow the gap with Sun Country Airlines's lower-fee model — the USD 219 base difference shrinks to USD 114 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.AA charges 8.0x more in ancillary fees than SY on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Buffalo to Chicago?
11 airlines flew Buffalo to Chicago 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) |
|---|---|---|---|---|
 F9|DL | 6 | — | 405 | n/a |
 Frontier Airlines | 20 | 407–433 | 407 | n/a |
 F9|UA | 4 | — | 431 | n/a |
 Delta Air Lines | 8 | 479–505 | 479 | n/a |
 American | 3 | — | 481 | n/a |
 United | 4 | — | 481 | n/a |
 WN|DL | 6 | — | 490 | n/a |
 American Airlines | 61 | 481–516 | 491 | 120 (24%) |
 United Airlines | 33 | 481–564 | 491 | 82 (17%) |
 Southwest Airlines | 24 | 484–567 | 495 | 90 (18%) |
 Sun Country Airlines | 1 | — | 605 | 15 (2%) |
Where do the best Buffalo → Chicago 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: Buffalo to Chicago flights
- Full-service carriers on Buffalo–Chicago cost 1.1x more than budget airlines (USD 484 vs USD 451 median; overall median USD 490).
- AA charges 8.0x more in ancillary fees than SY — USD 120 vs USD 15 avg per booking.
- The same route priced USD 133 apart depending on where it was booked — the lowest median was USD 431. 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 Buffalo to Chicago cost?
- Based on 170 offers analyzed, Buffalo to Chicago flights range from USD 405 to USD 605, with a median price of USD 490. Search for your specific dates →
- What hidden fees should I expect on Buffalo to Chicago flights?
- On average, ancillary fees (bags, seat selection) add USD 97 to the base fare on Buffalo to Chicago flights. See itemized fees for your itinerary →
- Which airline is cheapest on Buffalo to Chicago including all fees?
- F9|DL has the lowest median fare on Buffalo to Chicago at USD 405 (median across 6 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Buffalo–Chicago 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 431. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Buffalo to Chicago routes?
- Buffalo to Chicago has 11 airlines competing, creating a price range from USD 405 to USD 605 across 170 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
11 airlines, two price clusters — find which fits your budget
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