Cheap flights from Chicago to Ottawa

One-way fares from $255 · CHI → YOW · prices found by travellers in the last 48 hours

Compare all dates Ottawa → Chicago
Cheapest fare
$255

Allegiant Air · Thu, Nov 12

Cheapest month
November

from $255

Direct flights
Not recently

Usually 1+ stop

Quickest trip
2h 52m

1,040 km

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Cheapest month to fly from Chicago to Ottawa

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $255

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Allegiant Air
Depart09:30 Thu, Nov 12RFD → YOW 7h 32m · 2 stops
$255one way, per person
View deal
Porter Airlines Canada
Depart18:20 Sun, Nov 15ORD → YOW 2h 52m · 1 stop
$310one way, per person
View deal
Porter Airlines Canada
Depart12:15 Sat, Nov 14ORD → YOW 2h 55m · 1 stop
$360one way, per person
View deal
jetBlue
Depart17:30 Fri, Nov 20ORD → YOW 3h 56m · 1 stop
$381one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Ottawa

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in OttawaCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in OttawaTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in OttawaPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in OttawaCompare rental cars from major brands on EconomyBookings Compare cars →

Stay connected

eSIM for CanadaMobile data from the moment you land, by Airalo Get eSIM →

About flights from Chicago to Ottawa

Chicago (CHI) and Ottawa (YOW) are about 1,040 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 2h 52m. Over the next few months, one-way fares start from $255, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Chicago to Ottawa?

The cheapest one-way fare we've seen recently is $255 with Allegiant Air, departing Thursday, November 12, 2026.

What is the cheapest month to fly from Chicago to Ottawa?

November 2026 currently has the lowest fares, from $255 one way.

Are there direct flights from Chicago to Ottawa?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Chicago to Ottawa?

The quickest journey we've seen takes about 2h 52m. Chicago and Ottawa are around 1,040 km apart.

Which airlines fly from Chicago to Ottawa?

Recent fares on this route were with Allegiant Air, Porter Airlines Canada and jetBlue.

More cheap flights from Chicago

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