Flights London → Chicago
As of October 2026, economy flights from London to Chicago have a typical range GBP 1476–1662, median GBP 1628. Full range across all 204 offers: GBP 626–1769. We analyzed 204 offers from 21 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: London → Chicago
Based on 204 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: London → Chicago
Add-on pricing from the cheapest available offer per airline · October 2026 · GBP
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Iberia | Included | GBP 30 | — |
| British Airways | Included | — | — |
| Finnair | Included | — | — |
| Brussels Airlines | Included | GBP 35 | — |
| Lufthansa | Included | GBP 35 | — |
| Austrian Airlines | Included | GBP 35 | — |
| United | Included | GBP 35 | — |
| American Airlines | Included | GBP 35 | — |
| Aer Lingus | Included | GBP 30 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from London to Chicago cost?
Based on 204 offers · October 2026
London to Chicago flights ranged from GBP 626 to GBP 1769 across 204 offers analyzed in October 2026. The chart below shows how prices distributed across all 204 offers.
These 204 offers (October 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between GBP 1490 and GBP 1657
What hidden fees do London to Chicago flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on London to Chicago routes. The breakdown below is based on 204 offers analyzed in October 2026.
| Carrier | Avg fee (GBP) | % of base fare |
|---|---|---|
| IB | 33 | 2% |
| BA | 45 | 3% |
| AY | 36 | 2% |
| SN | 45 | 3% |
| LH | 45 | 3% |
| OS | 45 | 3% |
| UA | 45 | 3% |
| AA | 45 | 3% |
| EI | 38 | 2% |
British Airways: base ~GBP 1439 + fees GBP 45 = ~GBP 1484 total. Iberia: base ~GBP 1452 + fees GBP 33 = ~GBP 1485 total.
British Airways's GBP 45 ancillary fees narrow the gap with Iberia's lower-fee model — the GBP 13 base difference shrinks to GBP 1 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.BA charges 1.4x more in ancillary fees than IB on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from London to Chicago?
21 airlines flew London to Chicago in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
| Airline | Offers | Typical range (GBP) | Median (GBP) | Fees (GBP) |
|---|---|---|---|---|
 TAP Air Portugal | 1 | — | 626 | n/a |
 TP|AA|IB | 1 | — | 721 | n/a |
 LX|UA|TP | 1 | — | 746 | n/a |
 LX|UA|AA|IB | 1 | — | 841 | n/a |
 TP|UA | 1 | — | 906 | n/a |
 LX|UA | 1 | — | 1026 | n/a |
 IB|TP | 1 | — | 1143 | n/a |
 IB|AA | 1 | — | 1238 | n/a |
 IB|UA | 1 | — | 1423 | n/a |
 British Airways | 30 | 1481–1566 | 1484 | 45 (3%) |
 Iberia | 34 | 1472–1665 | 1485 | 33 (2%) |
 Finnair | 44 | 1493–1662 | 1577 | 36 (2%) |
 United | 3 | — | 1594 | n/a |
 British Airways | 4 | — | 1641 | n/a |
 American | 8 | — | 1641 | n/a |
 Brussels Airlines | 9 | 1567–1657 | 1657 | 45 (3%) |
 Lufthansa | 27 | 1617–1657 | 1657 | 45 (3%) |
 Austrian | 14 | 1601–1671 | 1657 | 45 (3%) |
 United Airlines | 6 | — | 1657 | 45 (3%) |
 American Airlines | 12 | — | 1658 | 45 (3%) |
 Aer Lingus | 4 | 1759–1769 | 1769 | 38 (2%) |
Where do the best London → Chicago prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: London to Chicago flights
- London–Chicago had 204 offers analyzed. Median price: GBP 1628.
- BA charges 1.4x more in ancillary fees than IB — GBP 45 vs GBP 33 avg per booking.
- The same route priced GBP 816 apart depending on where it was booked — the lowest median was GBP 841. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from London to Chicago cost?
- Based on 204 offers analyzed, London to Chicago flights range from GBP 626 to GBP 1769, with a median price of GBP 1628. Search for your specific dates →
- What hidden fees should I expect on London to Chicago flights?
- On average, ancillary fees (bags, seat selection) add GBP 40 to the base fare on London to Chicago flights. See itemized fees for your itinerary →
- Which airline is cheapest on London to Chicago including all fees?
- TAP Air Portugal has the lowest median fare on London to Chicago at GBP 626 (median across 1 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest London–Chicago flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was GBP 841. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on London to Chicago routes?
- London to Chicago has 21 airlines competing, creating a price range from GBP 626 to GBP 1769 across 204 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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