Flights Ottawa → Chicago
As of September 2026, economy flights from Ottawa to Chicago have a typical range CAD 972–1285, median CAD 1059. Full range across all 73 offers: CAD 158–1399. We analyzed 73 offers from 4 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: Ottawa → Chicago
Based on 73 offers · September 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Ottawa → Chicago
Add-on pricing from the cheapest available offer per airline · September 2026 · CAD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Porter Airlines | Included | Included | — |
| American Airlines | Included | CAD 138 | — |
| United Airlines | Included | CAD 35 | — |
| Air Canada | Included | CAD 30 | — |
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 Ottawa to Chicago cost?
Based on 73 offers · September 2026
Ottawa to Chicago flights ranged from CAD 158 to CAD 1399 across 73 offers analyzed in September 2026. The chart below shows how prices distributed across all 73 offers.
These 73 offers (September 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 1040 and CAD 1143
What hidden fees do Ottawa to Chicago flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Ottawa to Chicago routes. The breakdown below is based on 73 offers analyzed in September 2026.
| Carrier | Avg fee (CAD) | % of base fare |
|---|---|---|
| PD | 11 | 3% |
| AA | 88 | 8% |
| UA | 58 | 5% |
| AC | 21 | 2% |
United Airlines: base ~CAD 997 + fees CAD 58 = ~CAD 1055 total. Air Canada: base ~CAD 1122 + fees CAD 21 = ~CAD 1143 total.
United Airlines's CAD 58 ancillary fees narrow the gap with Air Canada's lower-fee model — the CAD 125 base difference shrinks to CAD 88 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 Ottawa to Chicago?
4 airlines flew Ottawa to Chicago 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 (Porter Airlines), fares ranged CAD 158–756 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) |
|---|---|---|---|---|
 Porter Airlines | 3 | 158–756 | 158 | 11 (7%) |
 United Airlines | 33 | 1028–1143 | 1055 | 58 (6%) |
 Air Canada | 23 | 1057–1157 | 1143 | 21 (2%) |
 American Airlines | 14 | 847–1392 | 1285 | 88 (7%) |
Where do the best Ottawa → Chicago 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: Ottawa to Chicago flights
- Ottawa–Chicago had 73 offers analyzed. Median price: CAD 1059.
- AA charges 7.8x more in ancillary fees than PD — CAD 88 vs CAD 11 avg per booking.
- The same route priced CAD 529 apart depending on where it was booked — the lowest median was CAD 847. 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 Ottawa to Chicago cost?
- Based on 73 offers analyzed, Ottawa to Chicago flights range from CAD 158 to CAD 1399, with a median price of CAD 1059. Search for your specific dates →
- What hidden fees should I expect on Ottawa to Chicago flights?
- On average, ancillary fees (bags, seat selection) add CAD 50 to the base fare on Ottawa to Chicago flights. See itemized fees for your itinerary →
- Which airline is cheapest on Ottawa to Chicago including all fees?
- Porter Airlines has the lowest median fare on Ottawa to Chicago at CAD 158 (median across 3 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Ottawa–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 CAD 847. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Ottawa to Chicago routes?
- Ottawa to Chicago has 4 airlines competing, creating a price range from CAD 158 to CAD 1399 across 73 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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