
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $639 (CheapOair) |
One-way from | $346 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $687 |
Good round-trip deal | $691 or less |
Good one-way deal | $488 or less |
Fly from
Fly to
Route
Depart
Return
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Sun 9/13
8:10 pm-3:35 pm
1 stop37h 25m
Lisbon Humberto Delgado
Mon 10/5
5:55 am-9:40 am
1 stop33h 45m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Tue 7/21
10:25 pm-11:25 pm
1 stop19h 00m
Lisbon Humberto Delgado
Tue 7/28
6:35 am-4:00 pm
1 stop15h 25m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Mon 7/13
10:28 am-10:45 am
1 stop18h 17m
Lisbon Humberto Delgado
Thu 7/23
9:50 am-9:52 pm
2 stops18h 02m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Mon 6/8
10:30 pm-11:25 pm
1 stop18h 55m
Lisbon Humberto Delgado
Thu 6/18
6:35 am-4:00 pm
1 stop15h 25m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Mon 6/8
8:20 pm-11:05 am
1 stop32h 45m
Lisbon Humberto Delgado
Fri 6/19
11:25 am-2:44 pm
1 stop33h 19m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Sun 8/23
7:05 pm-5:45 pm
1 stop16h 40m
Lisbon Humberto Delgado
Sat 8/29
6:55 pm-1:50 pm
1 stop24h 55m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Sun 7/5
10:29 am-10:45 am
1 stop18h 16m
Lisbon Humberto Delgado
Sun 7/12
7:45 pm-2:30 pm
1 stop24h 45m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Sun 9/13
6:10 pm-5:50 pm
2 stops17h 40m
Lisbon Humberto Delgado
Mon 10/5
5:00 am-8:24 pm
2 stops21h 24m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Sun 9/13
4:20 pm-6:45 pm
1 stop20h 25m
Lisbon Humberto Delgado
Mon 9/28
5:35 am-8:30 pm
2 stops20h 55m
ChicagoLisbon
ORD - LIS
ORDLIS
Chicago O'Hare Intl
Sat 9/5
3:50 pm-11:05 am
2 stops13h 15m
Lisbon Humberto Delgado
Fri 9/18
11:25 am-11:21 pm
2 stops17h 56m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
The best time to book flights from Chicago O'Hare Intl Airport to Lisbon is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Lisbon (average of $564). Flying from Chicago O'Hare Intl Airport to Lisbon in May is currently the most expensive (average of $1,062). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Lisbon as you normally would.
About 39% of weekly flights between Chicago and Lisbon have experienced delays in the past year, with the average delay time being 137 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Thursday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 39% of flights being delayed.
Madrid (MAD) – chosen by Cheapflights users on 33% of 1-stop itineraries from Chicago O'Hare Intl Airport to Lisbon on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $397.
Flights via London (LHR) have the shortest average one-way travel time for 1-stop routes: 12h 20m.
Flights via London (LHR) offer the fastest connection on this route, with an average layover time of 1h 48m.
Entertainment
Comfort
Food
Overall
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Reviews
Anonymous,Apr 2026
DFW - EWR
Entertainment
Comfort
Food
Overall
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Anonymous,Apr 2026
DFW - EWR
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Apr 2026
DFW - EWR
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Apr 2026
DFW - EWR
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Apr 2026
DFW - EWR
Entertainment
Comfort
Food
Overall
Boarding
Crew
Reviews
Anonymous,Apr 2026
DFW - EWR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$369 | Average$483 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$371 | Average$535 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$470 | Average$625 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$483 | Average$778 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$483 | Average$853 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$489 | Average$711 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$496 | Average$757 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$497 | Average$776 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$503 | Average$600 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$505 | Average$766 | FlexibilityNo cancel fee | On-time71% |