Flights Chicago → London
As of November 2026, economy flights from Chicago to London have a typical range USD 1500–1734, median USD 1580. Full range across all 575 offers: USD 1138–3843. We analyzed 575 offers from 28 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: Chicago → London
Based on 575 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Chicago → London
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Scandinavian Airlines | — | — | — |
| Frontier Airlines | — | — | — |
| Air Canada | Included | USD 30 | — |
| LOT | Included | USD 25 | — |
| Finnair | Included | USD 30 | — |
| SWISS | Included | USD 40 | — |
| Lufthansa | Included | USD 35 | — |
| Iberia | Included | — | — |
| Delta | Included | USD 35 | — |
| American Airlines | Included | USD 35 | — |
| United | Included | USD 35 | — |
| British Airways | Included | USD 65 | — |
| Virgin Atlantic | Included | Included | — |
| KLM | Included | USD 35 | — |
| Air France | Included | USD 35 | — |
| Icelandair | Included | USD 30 | — |
| Aer Lingus | Included | USD 30 | — |
| Austrian Airlines | Included | USD 35 | — |
| TAP Air Portugal | Included | USD 30 | — |
| Brussels Airlines | Included | USD 35 | — |
| Turkish Airlines | Included | Included | — |
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 Chicago to London cost?
Based on 575 offers · November 2026
Chicago to London flights ranged from USD 1138 to USD 3843 across 575 offers analyzed in November 2026. The chart below shows how prices distributed across all 575 offers.
These 575 offers (November 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 USD 1518 and USD 1692
What hidden fees do Chicago to London flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Chicago to London routes. The breakdown below is based on 575 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| SK | 38 | 3% |
| F9 | 68 | 5% |
| AC | 42 | 3% |
| LO | 33 | 2% |
| AY | 37 | 2% |
| LX | 52 | 3% |
| LH | 44 | 3% |
| IB | 32 | 2% |
| DL | 45 | 3% |
| AA | 45 | 3% |
| UA | 49 | 3% |
| BA | 76 | 5% |
| VS | 20 | 1% |
| KL | 42 | 3% |
| AF | 47 | 3% |
| FI | 18 | 1% |
| EI | 38 | 2% |
| OS | 22 | 1% |
| TP | 40 | 2% |
| SN | 28 | 1% |
| TK | 10 | 1% |
British Airways: base ~USD 1566 + fees USD 76 = ~USD 1642 total. Turkish Airlines: base ~USD 1740 + fees USD 10 = ~USD 1750 total.
British Airways's USD 76 ancillary fees narrow the gap with Turkish Airlines's lower-fee model — the USD 174 base difference shrinks to USD 108 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.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Chicago to London?
28 airlines flew Chicago to London 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.
Even on the cheapest airline (SAS), fares ranged USD 1225–1233 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 SAS | 12 | 1225–1233 | 1229 | 38 (3%) |
 Frontier Airlines | 6 | 1206–1289 | 1280 | 68 (5%) |
 United | 9 | 1316–1543 | 1335 | n/a |
 LOT Polish Airlines | 2 | — | 1425 | 33 (2%) |
 American | 2 | 1354–1573 | 1464 | n/a |
 KLM | 9 | — | 1512 | n/a |
 Delta Air Lines | 57 | 1495–1577 | 1518 | 45 (3%) |
 Virgin Atlantic | 45 | 1518–1690 | 1521 | 20 (1%) |
 Lufthansa | 1 | — | 1537 | n/a |
 Swiss | 22 | 1479–1681 | 1575 | 52 (3%) |
 Air France | 10 | 1518–1688 | 1577 | 47 (3%) |
 KLM | 28 | 1518–1781 | 1580 | 42 (3%) |
 United Airlines | 54 | 1505–1733 | 1583 | 49 (3%) |
 Air Canada | 10 | 1540–1815 | 1584 | 42 (3%) |
 Finnair | 18 | 1503–1923 | 1599 | 37 (2%) |
 Iberia | 18 | 1499–2046 | 1636 | 32 (2%) |
 British Airways | 89 | 1517–1728 | 1642 | 76 (5%) |
 American Airlines | 76 | 1508–1719 | 1644 | 45 (3%) |
 Icelandair | 1 | — | 1644 | n/a |
 Lufthansa | 58 | 1491–1727 | 1656 | 44 (3%) |
 Aer Lingus | 17 | 1635–1719 | 1669 | 38 (2%) |
 British Airways | 2 | — | 1682 | n/a |
 TAP Air Portugal | 6 | 1713–1716 | 1716 | 40 (2%) |
 Turkish Airlines | 1 | — | 1750 | 10 (1%) |
 Aer Lingus | 1 | — | 1871 | n/a |
 Icelandair | 11 | 1625–3843 | 2077 | 18 (1%) |
 Brussels Airlines | 4 | 1791–3049 | 2319 | 28 (1%) |
 Austrian | 6 | 1729–2959 | 2734 | 22 (1%) |
Where do the best Chicago → London 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: Chicago to London flights
- Full-service carriers on Chicago–London cost 1.3x more than budget airlines (USD 1670 vs USD 1280 median; overall median USD 1580).
- BA charges 7.6x more in ancillary fees than TK — USD 76 vs USD 10 avg per booking.
- The same route priced USD 826 apart depending on where it was booked — the lowest median was USD 1280. 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 Chicago to London cost?
- Based on 575 offers analyzed, Chicago to London flights range from USD 1138 to USD 3843, with a median price of USD 1580. Search for your specific dates →
- What hidden fees should I expect on Chicago to London flights?
- On average, ancillary fees (bags, seat selection) add USD 46 to the base fare on Chicago to London flights. See itemized fees for your itinerary →
- Which airline is cheapest on Chicago to London including all fees?
- SAS has the lowest median fare on Chicago to London at USD 1229 (median across 12 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Chicago–London 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 USD 1280. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Chicago to London routes?
- Chicago to London has 28 airlines competing, creating a price range from USD 1138 to USD 3843 across 575 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
28 airlines compete on this route — we check every one
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