Flights from Chicago to Lisbon
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From $672 · Prices update daily
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The quick answer
Compare Chicago to Lisbon flights across 800+ airlines for the lowest fare. Cheapest month to fly: September. Travel authorization required (ESTA-style) (Portugal).
Price calendar — next 60 days
★ Cheapest: $672 on Sat, Sep 26 · Direct · TP
Recently observed fares · Final price confirmed at booking
Price calendar — Chicago to Lisbon
Month-by-month lowest fares. Green = cheapest dates.
Airlines flying Chicago to Lisbon
TAP Air PortugalApproximate: $530-$960 economy round trip
Direct · 8h 10m eastbound / 10h 45m westbound
American AirlinesApproximate: $480-$940 economy round trip
Direct · 12h 30m-14h 45m total incl. connection
United AirlinesApproximate: $500-$1,020 economy round trip
Direct · 13h 15m-15h 30m total incl. connection
Delta Air LinesApproximate: $540-$1,100 economy round trip
Direct · 14h 05m-16h 20m total incl. connection
IcelandairApproximate: $430-$820 economy round trip
Direct · 12h 10m-14h 00m total incl. connection
Flying to Lisbon? Compare from other US cities
Sometimes a nearby airport is cheaper. See Lisbon fares from other departure cities.
Portugal essentials
🟢 Visa-free for US passport holders
No visa for stays under 90 days; ETIAS required starting ~April 2027
Full Lisbon visa guide →🆘 Emergency
112
💱 Currency
Euro (€)
🕐 Time zone
UTC+0
🗣️ Language
Portuguese
🔌 Plugs
Type C/F · 230V
🚗 Driving
Right side
💡 Tipping
5–10%
📞 Dial code
+351
Entry rules can change — always confirm with official sources before booking.
Stay connected in Lisbon
Skip roaming fees — get a local eSIM before you land. Works in 200+ countries and activates instantly, so you’re online the moment you touch down.
Travel insurance
Protect your Chicago to Lisbon trip against delays, cancellations, and medical emergencies. US travelers can compare plans from top insurers.
Airport transfer in Lisbon
Pre-book your ride into Lisbon. Fixed price, meet & greet, and a driver waiting at arrivals — no meter anxiety after a long flight.
Flight delayed or cancelled?
If your Chicago to Lisbon flight was delayed more than 3 hours or cancelled, you may be entitled to up to €600 in compensation under EU/UK rules — even if you flew a non-EU airline. Free to check, no win no fee.
More resources
Chicago to Lisbon — frequently asked
How much is a flight from Chicago to Lisbon?+
Fares start around $672 round-trip, ranging up to about $824 in peak periods. Prices update daily across 800+ airlines.
What is the cheapest month to fly Chicago to Lisbon?+
September typically has the lowest fares.
Do US citizens need a visa for Portugal?+
Travel authorization required (ESTA-style) for stays up to 90 days. ETIAS authorization expected to be required for the Schengen Area; visa-free for stays up to 90 days in any 180-day period.
What currency is used in Portugal?+
The Euro (EUR, €). The emergency number is 112.
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