Cheap flights from Chicago to Lisbon

from 337 USD · 31h 0m flight time

Prices last checked 8 July 2026. Fares change often - book the cheapest date, not the most convenient one.

Flights

Hotels

Fares from Chicago to Lisbon start at 337 USD, based on 4 live price points sampled just now. August tends to be the cheapest month to fly this route right now. 3 airlines currently show fares here. Prices move fast, so treat this as a live baseline, not a locked-in quote.

Cheapest dates to fly - August is usually lowest

Depart date	Price (USD)
Thu, 16 Jul 2026	1,185
Sat, 1 Aug 2026	1,153
Thu, 16 Jul 2026	1,185
Sat, 1 Aug 2026	1,153

Airlines flying this route

AC, B6, FI

Frequently asked questions

How much does a flight from Chicago to Lisbon cost?

Real fares currently start at 337 USD round trip, based on live price data.

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

August currently has the lowest average fares based on the live price calendar for this route.

Which airlines fly from Chicago to Lisbon?

Airlines currently showing live fares on this route: AC, B6, FI.

book your flight to Lisbon

Flights

Hotels

\n"; var MARK_ATTR = "data-mt-replacement"; function buildReplacement() { var parser = new DOMParser(); var doc = parser.parseFromString(REPLACEMENT_HTML, "text/html"); var wrap = document.createElement("div"); wrap.className = "mt-hotel-replace-wrap"; wrap.setAttribute(MARK_ATTR, "1"); while (doc.body.firstChild) wrap.appendChild(doc.body.firstChild); return wrap; } function reexecuteScripts(root) { root.querySelectorAll("script").forEach(function (old) { var fresh = document.createElement("script"); for (var i = 0; i < old.attributes.length; i++) { var a = old.attributes[i]; fresh.setAttribute(a.name, a.value); } if (!old.src) fresh.appendChild(document.createTextNode(old.textContent)); old.parentNode.replaceChild(fresh, old); }); } function handleScript(scriptEl) { var container = scriptEl.closest ? scriptEl.closest(".elementor-widget-container") : null; if (container) { if (container.querySelector("[" + MARK_ATTR + "]")) { if (scriptEl.parentNode) scriptEl.parentNode.removeChild(scriptEl); return; } while (container.firstChild) container.removeChild(container.firstChild); var wrap = buildReplacement(); container.appendChild(wrap); reexecuteScripts(wrap); return; } if (!scriptEl.parentNode) return; var siblingWrap = buildReplacement(); scriptEl.parentNode.replaceChild(siblingWrap, scriptEl); reexecuteScripts(siblingWrap); } function scanDeep() { var sels = [ 'script[src*="' + HASH + '"]', 'script[data-rocket-src*="' + HASH + '"]' ]; document.querySelectorAll(sels.join(",")).forEach(handleScript); } scanDeep(); if (document.readyState !== "complete") { window.addEventListener("DOMContentLoaded", scanDeep); window.addEventListener("load", scanDeep); } setTimeout(scanDeep, 250); setTimeout(scanDeep, 1000); setTimeout(scanDeep, 3000); setTimeout(scanDeep, 6000); if (typeof MutationObserver !== "undefined") { var obs = new MutationObserver(function () { scanDeep(); }); obs.observe(document.documentElement, { childList: true, subtree: true }); setTimeout(function () { obs.disconnect(); }, 20000); } })();