Cologne to Sofia CGN → SOF
Cologne Bonn Airport (CGN) → Sofia Airport (SOF)
The cheapest return found recently is $70 with Ryanair, 7 Nov – 8 Nov, found 2 days ago. The cheapest one-way found recently is $26 with Ryanair, 31 Oct, found yesterday.
Return
The cheapest return fare on each of 5 departure dates is usually $79 to $131.
Cheapest return found recently
$70
7 Nov – 8 Nov · Ryanair
Cologne Bonn Airport (CGN) → Sofia Airport (SOF)
Leaves 6:30 p.m. · Return leaves 10:35 p.m. · 5 h of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$70
7 Nov – 8 Nov · Ryanair
Cologne Bonn Airport (CGN) → Sofia Airport (SOF)
Leaves 6:30 p.m. · Return leaves 10:35 p.m. · 5 h of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$70 7 Nov – 8 Novfound 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $62 to $294.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 5 departure dates from 30 Oct to 23 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 1-night return fares leaving within 3 days of 7 Nov to compare.
Every date we hold
8 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 30 Oct – 1 Nov | $131 | Ryanair | Cologne Bonn Airport (CGN) → Sofia Airport (SOF) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 31 Oct – 1 Nov | $131 | Malta Air | Cologne Bonn Airport (CGN) → Sofia Airport (SOF) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 6 Nov – 8 Nov | $105 | Ryanair | Cologne Bonn Airport (CGN) → Sofia Airport (SOF) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 7 Nov – 8 Nov | $70 | Ryanair | Cologne Bonn Airport (CGN) → Sofia Airport (SOF) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 23 Nov – 28 Nov | $79 | Ryanair | Cologne Bonn Airport (CGN) → Sofia Airport (SOF) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $70.
Airlines on the cheapest dates: Ryanair, Malta Air.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $37 to $47.
Cheapest one-way found recently
$26
31 Oct · Ryanair
Cologne Bonn Airport (CGN) → Sofia Airport (SOF)
Leaves 6:30 p.m. · 2 h 25 min trip
nonstop
found yesterday
Cheapest nonstop one-way
$26
31 Oct · Ryanair
Cologne Bonn Airport (CGN) → Sofia Airport (SOF)
Leaves 6:30 p.m. · 2 h 25 min trip
nonstop
found yesterday
Found recently, and the cheapest we hold
$26 31 Octfound yesterdayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $26 to $35.
At $26, the cheapest one-way found recently is at the low end of that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 25 Oct to 6 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 31 Oct to compare.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 25 Oct | $47 | Ryanair | Cologne Bonn Airport (CGN) → Sofia Airport (SOF) | nonstop | found 2 days ago | Open this trip |
| 31 Oct | $26 | Ryanair | Cologne Bonn Airport (CGN) → Sofia Airport (SOF) | nonstop | found yesterday | Open this trip |
| 6 Nov | $47 | Ryanair | Cologne Bonn Airport (CGN) → Sofia Airport (SOF) | nonstop | found 4 days ago | Open this trip |
Which month looks cheapest?
October 2026 is the cheapest month — from $26.
Airlines on the cheapest dates: Ryanair.
Premium cabin fares from Cologne to Sofia
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 7 Nov – 8 Nov in another cabin: Premium economy · Business · First
Today's prices for 31 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Cologne to Sofia?
Return
Fares 30 to 59 days before departure were typically 65% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $223 | $217 | +182% | 15 |
| 7–13 days | $223 | $118 | +182% | 8 |
| 14–29 days | $85 | $70 | +8% | 19 |
| 30–59 days | $79 | $62 | Cheapest seen | 23 |
| 60–89 days | $271 | $271 | +243% | 9 |
| 180+ days | $263 | $263 | +233% | 8 |
One-way
The cheapest fares were 14 to 29 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $26 | $26 | Cheapest seen | 9 |
| 30–59 days | $28 | $26 | +8% | 18 |
| 60–89 days | $36 | $34 | +39% | 16 |
| 90–179 days | $41 | $34 | +58% | 24 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Eindhoven → Sofia
118 km from Cologne
$251
$181 more than flying from Cologne
17 Dec – 7 Jan 2027 · EIN → SOF · out 2 stops, back 1 stop
found yesterday
Dusseldorf → Sofia
34 km from Cologne
$381
$311 more than flying from Cologne
23 Dec – 1 Jan 2027 · DUS → SOF · out 1 stop, back 1 stop
found yesterday
Muenster → Sofia
123 km from Cologne
$165
$95 more than flying from Cologne
1 Nov – 9 Nov · FMO → SOF · out 1 stop, back 1 stop
found 2 days ago
Dortmund → Sofia
73 km from Cologne
$207
$137 more than flying from Cologne
26 Oct – 27 Nov · DTM → SOF · out 2 stops, back 1 stop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Eindhoven → Sofia
118 km from Cologne
$27
$1 more than flying from Cologne
13 Jan 2027 · EIN → SOF · nonstop
found 3 days ago
Dortmund → Sofia
73 km from Cologne
$46
$20 more than flying from Cologne
27 Oct · DTM → SOF · nonstop
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 7 Nov – 8 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work