You can buy travel insurance after booking, up to departure
Yes. Most insurers sell cover any time before you depart, but it will not pay for an event that was already known or foreseeable when you bought it. Some benefits, such as cover for existing medical conditions and Cancel For Any Reason, must be bought within days of your first trip payment.
Buying early adds benefits with short windows
- Allianz says the best time to buy is immediately after you finish your travel arrangements, and that any time before you depart is still possible.1
- To get Allianz's existing medical condition benefit, the plan must be bought within 14 days of the first trip payment or deposit.1
- Cancel For Any Reason upgrades must be added 10 to 21 days after first deposit and repay 50% to 75% of insured costs.2
- Trip cancellation cover starts on the policy's effective date, so only events after that date count.
Every wording excludes events that were known when you bought
Insurers call this a known event, a foreseeable event or a circumstance known. The wording differs, and the line can fall before the event itself.
| Insurer or card | Known-event wording |
|---|---|
| Aviva (UK) | Excludes events widely reported in UK media before purchase |
| Post Office and Columbus Direct (UK) | Excludes cover bought or a trip booked after you knew of the disruption |
| InsureandGo, Multitrip, Blue, Monzo | Excludes air traffic control delay that existed or was publicly announced before purchase |
| ERGO (Germany) | Excludes a delay known more than 24 hours before travel |
| Great Eastern (Singapore) | Excludes a delay you were told of more than three days before departure |
| GNP (Mexico) | Excludes a delay made public 24 hours before departure |
| American Express (US cards) | Excludes losses made public or known before you set off on the trip |
| Capital One (US card) | Excludes a covered hazard made public or known before departure |
| Cover-More US | The delay or cancellation must be announced after the policy's effective date |
Source: policy wordings and guides to benefits read for the claim tool, 15 November 2026.3
Travelex and TuGo set 13 November 2026 as the cut-off for the FAA ground stop
The FAA ordered the nationwide ground stop at 3:54pm ET on Friday 13 November 2026 and lifted it at 8:15pm ET, 4 hours 21 minutes later4. Trackers counted 9,159 cancelled flights that day5.
Travelex set 13 November 2026 as the foreseeable date
Travelex lists "Nationwide FAA ground stop at U.S. airports" on its travel alerts page for its Zurich-underwritten plans. Plans bought on or after 13 November 2026 do not cover this event.6
TuGo excludes cover bought from 4:00pm on 13 November 2026
TuGo's advisory, dated 13 November 2026, says trip cancellation and interruption cover may apply where the grounding cancelled or delayed a flight. Insurance bought or trips booked on or after 4:00pm that day fall under its known-circumstance exclusion. The page prints the time zone as "PCT", which could mean Pacific time.7
No other insurer we read has published a date for this event. Every wording we read excludes events that were known or foreseeable when you bought the policy or booked the trip, so treat cover bought after the FAA order at 3:54pm ET on 13 November 2026 as unlikely to respond to it.8
Already covered before the stop?
If your policy started before 3:54pm ET on 13 November 2026, check whether your wording covers the cause, then claim. See your insurer's wording or build your claim pack.
Questions about buying cover after booking
Can you buy travel insurance after booking a flight?
Yes. Allianz says the third best time to buy is any time before you depart. Buying sooner adds benefits that have short windows.
Can I get travel insurance after a disruption has started?
You can buy it, but it will not cover that disruption or its knock-on effects. For the 13 November 2026 FAA ground stop, Travelex and TuGo set 13 November as the cut-off.
How long after booking can I add Cancel For Any Reason?
Squaremouth puts the window at 10 to 21 days after first deposit, and you must cancel at least 48 hours before departure.
Does my credit card cover a trip I already booked?
Card trip delay benefits apply when the fare was paid on the card, in full or in part depending on the card. There is nothing to buy, but the known-event wording on some cards applies from when you set off.
Related pages on this site
Every figure on this page links to its source
8 sources
Read on the provider's or regulator's own page unless tagged summary (reported elsewhere) or unverified. The live site's full source list is on the methodology page.
- Allianz Travel Insurance, when to buy read checked 15 November 2026
- Squaremouth, cost of travel insurance read checked 15 November 2026
- Claim reference data, methodology page read checked 15 November 2026
- CNBC, ground stop lifted read checked 15 November 2026
- FlightAware via Upgraded Points read checked 15 November 2026
- Travelex, flight disruptions alert read checked 15 November 2026
- TuGo, travel advisories read checked 15 November 2026
- Upgraded Points, policy bought after 13 November summary checked 15 November 2026