to OPO Cheap Flights

Compare flights across 200+ booking sites in one search. Free, fast, no hidden fees.

From
To
Depart
Return
Travellers
1 adult
Adults
Age 18+
1
Children
Ages 2–11
0
Infants
Under 2
0
Cabin class
20+
Routes
20
Origins
200+
Sites Compared
Best price guaranteed No booking fees Aviasales · Booking · Skyscanner · Kiwi · Kayak · Expedia
Compare 200+ partners
One search across Aviasales, Booking, Skyscanner, Kiwi, Kayak and more — see the cheapest fare instantly.
Best-price promise
If you find a lower fare on the same flight elsewhere, we'll show it. Transparent pricing, no hidden fees at checkout.
Track prices, save more
Set price alerts on any route — we'll ping you when fares drop. Flexible-date views show the cheapest day to fly.

Popular Departure Cities

Select a city to see available flights

All Origins London (LON) New York (NYC) Paris (PAR) Frankfurt (FRA) Warsaw (WAW) Istanbul (IST) GYD (GYD) Moscow (MOW) Saint Petersburg (LED) Tbilisi (TBS) Dubai (DXB) Amsterdam (AMS) Madrid (MAD) Barcelona (BCN) Vienna (VIE) Tel Aviv-Yafo (TLV) Rome (ROM) Copenhagen (CPH) Lisbon (LIS) Prague (PRG)
RouteAirlineTypeDurationPrice
BRU → OPO
Brussels → Porto
 MW 2 stop(s) — $191 View →
AMS → OPO
Amsterdam → Porto
 FR 0 stop(s) 26h 10m $199 View →
DUB → OPO
Dublin → Porto
 NI 0 stop(s) 37h 10m $232 View →
FNI → OPO
Nimes → Porto
 FR Direct — $257 View →
CGN → OPO
Cologne → Porto
 FR Direct — $259 View →
GYD → OPO
GYD → Porto
 W6 0 stop(s) 58h 35m $261 View →
IST → OPO
Istanbul → Porto
 VF 0 stop(s) 19h 50m $265 View →
GVA → OPO
Geneva → Porto
 TP 1 stop(s) — $277 View →
TLV → OPO
Tel Aviv-Yafo → Porto
 W4 0 stop(s) 70h 30m $277 View →
ATH → OPO
Athens → Porto
 U2 0 stop(s) 42h 50m $280 View →
ZRH → OPO
Zurich → Porto
 GW 2 stop(s) — $299 View →
TUF → OPO
Tours → Porto
 FR 2 stop(s) — $307 View →
TBS → OPO
Tbilisi → Porto
 VF 0 stop(s) 75h 15m $332 View →
CAI → OPO
Cairo → Porto
 W4 0 stop(s) 39h 50m $391 View →
MOW → OPO
Moscow → Porto
 VF 0 stop(s) 56h 10m $560 View →
LED → OPO
Saint Petersburg → Porto
 VF 0 stop(s) 50h 10m $590 View →
CHI → OPO
Chicago → Porto
 TK 0 stop(s) 39h 30m $625 View →
DXB → OPO
Dubai → Porto
 KL 0 stop(s) 27h 40m $631 View →
NYC → OPO
New York → Porto
 UX 0 stop(s) 27h 20m $668 View →
GRU → OPO
GRU → Porto
 IB 0 stop(s) 26h 55m $753 View →
✨ Jiai — Travel AI Open Full →
Hi! I'm **Jiai**. Ask me about hotels, flights, activities or budgets for any destination.
✈️

You're on a roll!

Enter your email for unlimited Jiai access + personalised travel deals.

No spam. Unsubscribe anytime.