RareNonstop · 5h
CHI to SJUPuerto Rico
San Juan
$162
usually $340
−52%
Most monthly lows $287–$340. Cheaper than every other month on record (3).
Flights · CHI → OTP
Chicago to Bucharest
Best fare, round trip
$913
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Sat 31 Oct
- Return
- Sun 29 Nov
- Stay
- 29 nights
- Flight
- 2 stops · 12.5h
- Airline
SAS
Cached fare — the booking search re-prices live before you pay.
RomaniaBucharestBelle-époque villas next to communist concrete, and the cheapest capital in the European Union.Best windowMay–Jun · Sep–OctAirportsHenri Coandă (OTP)Every route into BucharestFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes 2 stops and takes about 12.5 hours outbound, on a 29-night trip — ticketed under SAS, which on a connecting fare need not operate every leg. At $913 for 8,363 km each way, that works out to about $55 per 1,000 km flown. That is above the $44 per 1,000 km typical of long-haul fares here. Across the 15 departure cities we track at a similar distance from Bucharest, this fare ranks 11th — 59% above the $573 from Seoul. For context, the middle fare among the 36 routes of similar length we watch out of Chicago is $730. We have 2 months of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage. Fare history here is still too short to name a cheap season. The best time to be in Bucharest: May–Jun · Sep–Oct.
The 2 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 27% higher than when tracking began on 5 Sep — $969 then versus $1,230 now, across 6 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $695, on 19 Oct.
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cached fares · checked 17 Oct 2026
We are still collecting this route's months — 2 months of cached prices so far, too few to chart.
Route facts
- Airports
- O’Hare (ORD) · Midway (MDW) ↔ Henri Coandă (OTP)
- Flight time
- ≈12.5 hours outbound
- Distance
- ≈8,363 km each way
- Airlines on the board
- SAS
- Itineraries
- Connections on current fares
- Best months to visit
- May–Jun · Sep–Oct
Good to know
CHI → OTP, answered.
How far in advance should I book CHI → Bucharest?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. Our guide Why flight prices change covers the levers we can measure.
Are there nonstop flights from Chicago to Bucharest?
The current cheapest fares involve a connection, ticketed under SAS. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 17 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Bucharest?
Lock the flight first — then compare stays for 31 Oct – 29 Nov · 29 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next CHI → OTP drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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