Chicago is the Midwest's great aviation crossroads, with two huge airports and a United and American hub each — €178 to Guadalajara, cheap Caribbean and Latin escapes, and a direct transatlantic hop to Scotland from the heart of the country.
Chicago’s main international airport is O’Hare (ORD), and getting downtown is genuinely easy: the CTA Blue Line runs from inside the airport to the Loop 24 hours a day, every day. The special O’Hare boarding fare is $5 (a normal CTA rail ride is $2.75 with a Ventra card), and the trip takes about 40–45 minutes. After a long flight, a train straight into downtown for $5, around the clock, is one of the best airport links in the US — far cheaper and more reliable than a cab through Chicago traffic. (The city’s second airport, Midway, also has its own Orange Line link.)
As a base, Chicago’s value is its dual-hub depth. United and American both run fortress operations, giving the Midwest dense domestic, Latin American and transatlantic coverage.
Mexico and the cheap domestic hops
Chicago’s cheapest international fare reflects its huge Mexican-American community: Guadalajara (€178) — Mexico’s second city and the heart of tequila country, cheap and frequent. Domestically, Milwaukee (€214) is a quick hop north. These are the impulse routes, with the Mexican network in particular deep and competitive across both Chicago airports.
The Caribbean and South America
The board heads south for sun. The Bahamas (€217) and Liberia, Costa Rica (€261) are strong winter-escape fares — turquoise water and Central American nature respectively — while Barranquilla (€395) reaches Colombia’s Caribbean coast. These cluster cheaply and connect the cold Midwest to guaranteed warmth, with the dual-hub competition keeping fares sharp.
The transatlantic hop
One route crosses the Atlantic directly: Glasgow (€576) — Scotland’s biggest city, nonstop from the Midwest, and a gateway onward across Britain and Europe. For travellers heading to Scotland or beyond, a direct transatlantic fare that skips a coastal connection saves real time. It’s the longest route on this board and the bridge to a whole continent, with Chicago’s hubs offering easy onward European connections too.
A note on these US-origin fares
These are leisure round-trips at their lowest verified levels and swing hard by season. The Caribbean and Mexican fares are cheapest in the shoulder weeks around US winter break; the European route is best outside the summer peak. With both United and American competing hard at Chicago, watch for sales from either — the Latin American and European fares in particular drop noticeably when a promotion runs.
Cheapest destinations from Chicago right now
Good-price round-trip targets from aifly’s own tracked fares — “good price” means book at or below this; nothing here is invented or scraped from third parties. The live deal page for each route shows the current fare.
| Destination | Good price | Why go |
|---|---|---|
| Guadalajara | €178 | €178 to Mexico's second city and the heart of tequila country. Cheapest international. |
| Milwaukee | €214 | €214 — a quick domestic hop north along Lake Michigan. |
| Bahamas | €217 | €217 to Nassau — turquoise water, a winter escape from the Midwest. |
| Liberia | €261 | €261 to Costa Rica's Pacific coast (Guanacaste) — beaches and nature. |
| Barranquilla | €395 | €395 to Colombia's Caribbean coast and Carnival city. |
| Glasgow | €576 | €576 — a direct transatlantic hop to Scotland and onward across Europe. |
Frequently asked questions
What's the cheapest flight from Chicago?
Guadalajara at around €178 — Mexico's second city, cheap and frequent thanks to Chicago's huge Mexican-American community. Domestically, Milwaukee (€214) is a quick hop north.
How do I get from O'Hare Airport into downtown Chicago?
The CTA Blue Line runs from inside O'Hare to the Loop 24/7, about 40–45 minutes, with a special O'Hare boarding fare of $5 (normal CTA rail is $2.75 with a Ventra card). It's one of the best airport links in the US.
Can you fly direct to Europe from Chicago?
Yes — Glasgow at around €576 is a direct transatlantic hop to Scotland and onward across Europe, and Chicago's dual hubs offer easy connections to many more European cities.
What's the cheapest way to reach the Caribbean from Chicago?
The Bahamas at around €217 and Liberia, Costa Rica at €261 are the cheapest — turquoise water and Central American nature, with dual-hub competition keeping fares sharp.
Do these Chicago fares include a checked bag?
US domestic and many international economy fares charge for checked luggage separately, especially basic economy. Confirm the allowance for your specific ticket at booking.
How current are these Chicago prices?
They're the lowest verified round-trip fares we've tracked recently and shift with season and demand. Use each as a benchmark for that route and book when you see a fare at or below it.
Seasons, carriers and airport details verified June 2026 and can change — confirm current conditions before you book.