JetBlue codeshare compensation and the operating-carrier rule
A B6 flight number does not prove JetBlue owes statutory compensation. EU261 and UK261 generally direct delay, cancellation and denied-boarding claims to the airline that actually operated or intended to operate the affected flight. JetBlue may still control the ticket refund, rebooking or customer contact when it marketed or issued the itinerary.
Free eligibility check
Check your case in the form
Enter your route, date and type of disruption. We will check whether your case qualifies for a claim under EU 261/2004 or UK261.
What happened to your flight?
Claim up to €600 for a delayed or cancelled flight.
Choose the situation that applies to your flight:
Find the “operated by” line on the original e-ticket before submitting. The JetBlue compensation claim guide explains the remaining evidence.
Marketing carrier versus operating carrier
| Role | Typical responsibility |
|---|---|
| Marketing carrier | Places its code on the itinerary and may sell the ticket |
| Operating carrier | Supplies aircraft and operational flight performance |
| Ticketing carrier or agent | Issues ticket and often processes unused-fare refund |
| Interline partner | Connects separate carrier services under ticketing arrangements |
A boarding pass might show “B6 1234 operated by Partner Airline.” The partner is normally the operating carrier. Another itinerary might carry a partner code but say “operated by JetBlue Airways”; JetBlue then remains the operator.
Do not infer operation from aircraft paint alone. Wet-lease arrangements can require a more careful look at who had operational responsibility.
EU261 example
A passenger books Paris-New York under a B6 marketing code, but a European partner operates the flight. The journey departs the EU, so territorial coverage exists either way. Fixed compensation generally follows the partner operator.
Now assume JetBlue actually operates Paris-New York but the ticket was sold by another airline. JetBlue is subject to EU261 because all carriers are covered on EU departures. The seller may process refund, yet the EUR 600 delay demand normally goes to JetBlue.
For a non-EU origin, operator nationality can alter scope. If an EU carrier actually operates New York-Paris under a JetBlue code, EU261 may apply to that inbound flight because the operator is an EU carrier. If JetBlue operates it, the route normally lies outside EU261.
UK261 example
London-New York is covered when JetBlue operates because it departs the UK. New York-London is normally outside UK261 for JetBlue, but a UK operating carrier can change the inbound analysis. Keep the original operated-by record rather than using the marketing code.
The fixed UK claim follows the operator, while a travel agent or marketing airline may remain involved in returning unused ticket funds. The distinction becomes important when one party tells the passenger to contact another.
Connections with multiple operators
On one Paris-New York-US destination ticket, a partner may operate the transatlantic sector and JetBlue the domestic connection. If the JetBlue sector creates final delay, case C-561/20 can allow the EU261 claim against JetBlue even though that flight was wholly within the United States.
If the first operator causes the missed connection, liability can follow that carrier. Preserve scheduled and actual timing for every sector. Do not send identical full claims to both airlines in the hope of double payment.
The C-561/20 connection guide explains why the complete booking and individual operator must be analysed together.
Codeshare is not the same as interline
Codeshare places more than one airline designator on the same operating flight. Interline arrangements can allow carriers to sell or connect each other's distinct flights without sharing a flight number. JetBlue and United describe their Blue Sky cooperation as interline, explicitly not codeshare.
That means a Blue Sky itinerary can contain one JetBlue-operated flight and one United-operated flight. Each operator remains identifiable. Ticketing convenience and loyalty earning do not merge the airlines into one operational carrier.
Refunds and schedule changes
After cancellation or significant change, the merchant or ticket issuer may need to execute the refund. DOT rules require money back when the passenger declines alternatives. If JetBlue sold a partner flight, ask whether JetBlue controls the ticket coupon or whether the partner/agent does.
For rebooking, the marketing and operating carriers may coordinate. Keep each offer and the final ticket reissue. A passenger should not lose statutory compensation merely because the seller handles operational communication, but must direct the formal demand correctly.
Baggage responsibility
International baggage claims can involve the first, last or loss-causing carrier under Montreal Convention rules, while the airport report is usually made with the carrier serving the arrival. This is not identical to EU261's operating-carrier rule.
Keep every baggage tag and carrier code. Do not wait for a fixed-compensation response before meeting seven-day or 21-day baggage notice periods.
Evidence for operator identity
Collect:
- the first e-ticket receipt before schedule changes;
- boarding passes for each sector;
- operated-by text from booking confirmation;
- flight status page naming the operator;
- aircraft and crew announcements where useful;
- ticket stock and payment merchant;
- reissue history after disruption.
If JetBlue denies operation, ask it to identify the responsible carrier and preserve that written admission. If two records conflict, use the airport and operational evidence.
Claim wording
State: “Although the ticket displayed marketing code [code], [airline] was the operating carrier of flight [details]. The continuous journey began in [territory] and arrived at [final destination] [duration] late.” Then identify the statutory remedy.
For refund, separately state who issued the ticket and collected payment. This avoids an operator dispute being used to ignore unused fare.
For a group booking, list the operator and amount for every affected traveller. A later reissue made only for one passenger can make the current booking display differ from the original record. Retain the first confirmation as the common reference and explain each changed ticket coupon in the attachment index.
This guide reflects records checked on 14 August 2026. Partner agreements and flight operators can change, so verify the actual travel date.
FAQ
Does a B6 number always mean JetBlue operated the flight?
No. It can be a JetBlue marketing code on another airline's service; check the operated-by line.
Who pays EU261 on a codeshare?
The operating carrier generally handles the statutory fixed compensation claim.
Who returns the ticket money?
The ticket issuer, merchant or airline controlling the unused coupon may process refund, even when another carrier operated.
Is JetBlue-United Blue Sky a codeshare?
No. The airlines describe Blue Sky as an interline cooperation, so each flight retains its own operator.
Can operator nationality matter on a flight into Europe?
Yes. EU261 and UK261 inbound coverage can depend on whether the actual operator is an EU or UK carrier.