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Companion pass and companion certificate maths — when a second seat for fees beats cash for two, and when spend thresholds and blackout rules make certificates worthless.

Key takeaways

Are companion certificates worth it?

Worth it when the certificate’s opportunity cost beats buying a second cash ticket on routes you actually fly — and companion taxes stay low. Not worth it when blackouts force expensive fares, companion taxes exceed sale cash for two, or you would not have spent toward the threshold organically.

We do not recommend specific cards — this is certificate arithmetic only.

Family travel baseline: family of four short-haul.

How do you value a companion certificate?

Value = (cash fare for second passenger you would buy) − (companion taxes/fees) − (allocated cost of reaching certificate). Allocate certificate cost across expected uses over expiry window — if one trip only, the full threshold/fee lands on that trip.

Second passenger cash: use the fare class you would actually purchase, not basic economy fiction.

Expiry: unused certificate value is zero — calendar reminders matter.

Route restrictions: transatlantic-only certs are useless for domestic-only households.

How do you value a companion certificate?
How do you value a companion certificate?
ScenarioOften worth itOften skip
High cash short-haul pairYesNo
Companion taxes >£200 long-haulNoYes
Forced spend to earn certNoYes
Two sales tickets cheaperNoYes

Companion certificates — verdict

Verdict: companion certs shine for predictable pairs on expensive routes — not as flex for aspirational trips you never book. Model one realistic trip, not ten fantasy routes. Not for solo travellers or households that never fly the eligible carrier.

Framework checked August 2026.

Valuation: how to value points redemptions.

Companion certificate FAQ

Certificate rules change with card terms — read issuer documentation.

Stack with points? Programme-specific — often one discount instrument per ticket.

Basic economy companion? Many certs exclude lowest buckets.

Evidence note

How we checked this guide

Research basis

Structured desk research using the comparison criteria and limitations stated in this guide.

Experience standard

No first-hand test or trip is implied unless the article explicitly states who tested it, when and under what conditions.

Review date

Editorially reviewed on 8 August 2026. Time-sensitive prices, rules and eligibility must be checked again before purchase or travel.

Commercial independence

This guide currently carries no configured commissioned partner link. Editorial conclusions are not sold.

See the editorial policy, method notes, or report a correction.